Home / 112,768,400.40-169,152,600.60-78,756,176.40

Finding the Fourth Proportional to 112,768,400.40, 169,152,600.60 and 78,756,176.40

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Solution

The fourth proportional to 112,768,400.40, 169,152,600.60 and 78,756,176.40 is: 118,134,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,768,400.40 : 169,152,600.60 = 78,756,176.40 : x
  2. Step 2: Convert to fraction form
    112,768,400.40/169,152,600.60 = 78,756,176.40/x
  3. Step 3: Cross multiply
    112,768,400.40x = 169,152,600.60 × 78,756,176.40
  4. Step 4: Simplify right side
    112,768,400.40x = 13,321,812,051,372,346
  5. Step 5: Solve for x
    x = 13,321,812,051,372,346/112,768,400.40
  6. Step 6: Final answer
    x = 118,134,264.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.