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Finding the Fourth Proportional to 123,897.60, 185,846.40 and 121,929.30

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Solution

The fourth proportional to 123,897.60, 185,846.40 and 121,929.30 is: 182,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,897.60 : 185,846.40 = 121,929.30 : x
  2. Step 2: Convert to fraction form
    123,897.60/185,846.40 = 121,929.30/x
  3. Step 3: Cross multiply
    123,897.60x = 185,846.40 × 121,929.30
  4. Step 4: Simplify right side
    123,897.60x = 22,660,121,459.52
  5. Step 5: Solve for x
    x = 22,660,121,459.52/123,897.60
  6. Step 6: Final answer
    x = 182,893.95

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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.