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Finding the Fourth Proportional to 123,655.60, 185,337.60 and 64,460.80

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Solution

The fourth proportional to 123,655.60, 185,337.60 and 64,460.80 is: 96,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,655.60 : 185,337.60 = 64,460.80 : x
  2. Step 2: Convert to fraction form
    123,655.60/185,337.60 = 64,460.80/x
  3. Step 3: Cross multiply
    123,655.60x = 185,337.60 × 64,460.80
  4. Step 4: Simplify right side
    123,655.60x = 11,947,009,966.08
  5. Step 5: Solve for x
    x = 11,947,009,966.08/123,655.60
  6. Step 6: Final answer
    x = 96,615.20

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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.