Home / 113,500.90-156,617.52-65,100.32

Finding the Fourth Proportional to 113,500.90, 156,617.52 and 65,100.32

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Solution

The fourth proportional to 113,500.90, 156,617.52 and 65,100.32 is: 89,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,500.90 : 156,617.52 = 65,100.32 : x
  2. Step 2: Convert to fraction form
    113,500.90/156,617.52 = 65,100.32/x
  3. Step 3: Cross multiply
    113,500.90x = 156,617.52 × 65,100.32
  4. Step 4: Simplify right side
    113,500.90x = 10,195,849,886.52
  5. Step 5: Solve for x
    x = 10,195,849,886.52/113,500.90
  6. Step 6: Final answer
    x = 89,830.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.