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Finding the Fourth Proportional to 123,666.40, 185,280.90 and 104,858.20

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Solution

The fourth proportional to 123,666.40, 185,280.90 and 104,858.20 is: 157,101.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,666.40 : 185,280.90 = 104,858.20 : x
  2. Step 2: Convert to fraction form
    123,666.40/185,280.90 = 104,858.20/x
  3. Step 3: Cross multiply
    123,666.40x = 185,280.90 × 104,858.20
  4. Step 4: Simplify right side
    123,666.40x = 19,428,221,668.38
  5. Step 5: Solve for x
    x = 19,428,221,668.38/123,666.40
  6. Step 6: Final answer
    x = 157,101.86

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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.