Home / 113,154.32-156,153-62,170.32

Finding the Fourth Proportional to 113,154.32, 156,153 and 62,170.32

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Solution

The fourth proportional to 113,154.32, 156,153 and 62,170.32 is: 85,795.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,154.32 : 156,153 = 62,170.32 : x
  2. Step 2: Convert to fraction form
    113,154.32/156,153 = 62,170.32/x
  3. Step 3: Cross multiply
    113,154.32x = 156,153 × 62,170.32
  4. Step 4: Simplify right side
    113,154.32x = 9,708,081,978.96
  5. Step 5: Solve for x
    x = 9,708,081,978.96/113,154.32
  6. Step 6: Final answer
    x = 85,795.06

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1.5x scale

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.