Home / 121,812.10-182,711.67-38,699.62

Finding the Fourth Proportional to 121,812.10, 182,711.67 and 38,699.62

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Solution

The fourth proportional to 121,812.10, 182,711.67 and 38,699.62 is: 58,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,812.10 : 182,711.67 = 38,699.62 : x
  2. Step 2: Convert to fraction form
    121,812.10/182,711.67 = 38,699.62/x
  3. Step 3: Cross multiply
    121,812.10x = 182,711.67 × 38,699.62
  4. Step 4: Simplify right side
    121,812.10x = 7,070,872,198.57
  5. Step 5: Solve for x
    x = 7,070,872,198.57/121,812.10
  6. Step 6: Final answer
    x = 58,047.37

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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.