Home / 123,538.10-185,307.15-121,569.80

Finding the Fourth Proportional to 123,538.10, 185,307.15 and 121,569.80

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Solution

The fourth proportional to 123,538.10, 185,307.15 and 121,569.80 is: 182,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,538.10 : 185,307.15 = 121,569.80 : x
  2. Step 2: Convert to fraction form
    123,538.10/185,307.15 = 121,569.80/x
  3. Step 3: Cross multiply
    123,538.10x = 185,307.15 × 121,569.80
  4. Step 4: Simplify right side
    123,538.10x = 22,527,753,164.07
  5. Step 5: Solve for x
    x = 22,527,753,164.07/123,538.10
  6. Step 6: Final answer
    x = 182,354.70

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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.