Home / 112,328.74-168,489.86-45,752.40

Finding the Fourth Proportional to 112,328.74, 168,489.86 and 45,752.40

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Solution

The fourth proportional to 112,328.74, 168,489.86 and 45,752.40 is: 68,627.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,328.74 : 168,489.86 = 45,752.40 : x
  2. Step 2: Convert to fraction form
    112,328.74/168,489.86 = 45,752.40/x
  3. Step 3: Cross multiply
    112,328.74x = 168,489.86 × 45,752.40
  4. Step 4: Simplify right side
    112,328.74x = 7,708,815,470.66
  5. Step 5: Solve for x
    x = 7,708,815,470.66/112,328.74
  6. Step 6: Final answer
    x = 68,627.28

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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.