Home / 113,390.40-156,478.80-62,403.12

Finding the Fourth Proportional to 113,390.40, 156,478.80 and 62,403.12

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Solution

The fourth proportional to 113,390.40, 156,478.80 and 62,403.12 is: 86,116.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,390.40 : 156,478.80 = 62,403.12 : x
  2. Step 2: Convert to fraction form
    113,390.40/156,478.80 = 62,403.12/x
  3. Step 3: Cross multiply
    113,390.40x = 156,478.80 × 62,403.12
  4. Step 4: Simplify right side
    113,390.40x = 9,764,765,333.86
  5. Step 5: Solve for x
    x = 9,764,765,333.86/113,390.40
  6. Step 6: Final answer
    x = 86,116.33

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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.