Home / 121,520.10-181,988.55-59,117.70

Finding the Fourth Proportional to 121,520.10, 181,988.55 and 59,117.70

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Solution

The fourth proportional to 121,520.10, 181,988.55 and 59,117.70 is: 88,534.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,520.10 : 181,988.55 = 59,117.70 : x
  2. Step 2: Convert to fraction form
    121,520.10/181,988.55 = 59,117.70/x
  3. Step 3: Cross multiply
    121,520.10x = 181,988.55 × 59,117.70
  4. Step 4: Simplify right side
    121,520.10x = 10,758,744,502.34
  5. Step 5: Solve for x
    x = 10,758,744,502.34/121,520.10
  6. Step 6: Final answer
    x = 88,534.69

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1.5x scale

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.