Home / 121,390.12-182,084.91-42,526.90

Finding the Fourth Proportional to 121,390.12, 182,084.91 and 42,526.90

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Solution

The fourth proportional to 121,390.12, 182,084.91 and 42,526.90 is: 63,790.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,390.12 : 182,084.91 = 42,526.90 : x
  2. Step 2: Convert to fraction form
    121,390.12/182,084.91 = 42,526.90/x
  3. Step 3: Cross multiply
    121,390.12x = 182,084.91 × 42,526.90
  4. Step 4: Simplify right side
    121,390.12x = 7,743,506,759.08
  5. Step 5: Solve for x
    x = 7,743,506,759.08/121,390.12
  6. Step 6: Final answer
    x = 63,790.26

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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.