Home / 112,643.40-169,011.84-49,430.58

Finding the Fourth Proportional to 112,643.40, 169,011.84 and 49,430.58

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Solution

The fourth proportional to 112,643.40, 169,011.84 and 49,430.58 is: 74,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,643.40 : 169,011.84 = 49,430.58 : x
  2. Step 2: Convert to fraction form
    112,643.40/169,011.84 = 49,430.58/x
  3. Step 3: Cross multiply
    112,643.40x = 169,011.84 × 49,430.58
  4. Step 4: Simplify right side
    112,643.40x = 8,354,353,278.07
  5. Step 5: Solve for x
    x = 8,354,353,278.07/112,643.40
  6. Step 6: Final answer
    x = 74,166.38

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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.