Home / 113,437.92-156,587.04-85,225.08

Finding the Fourth Proportional to 113,437.92, 156,587.04 and 85,225.08

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Solution

The fourth proportional to 113,437.92, 156,587.04 and 85,225.08 is: 117,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,437.92 : 156,587.04 = 85,225.08 : x
  2. Step 2: Convert to fraction form
    113,437.92/156,587.04 = 85,225.08/x
  3. Step 3: Cross multiply
    113,437.92x = 156,587.04 × 85,225.08
  4. Step 4: Simplify right side
    113,437.92x = 13,345,143,010.96
  5. Step 5: Solve for x
    x = 13,345,143,010.96/113,437.92
  6. Step 6: Final answer
    x = 117,642.70

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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.