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Finding the Fourth Proportional to 123,354.08, 185,060.16 and 40,248

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Solution

The fourth proportional to 123,354.08, 185,060.16 and 40,248 is: 60,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,354.08 : 185,060.16 = 40,248 : x
  2. Step 2: Convert to fraction form
    123,354.08/185,060.16 = 40,248/x
  3. Step 3: Cross multiply
    123,354.08x = 185,060.16 × 40,248
  4. Step 4: Simplify right side
    123,354.08x = 7,448,301,319.68
  5. Step 5: Solve for x
    x = 7,448,301,319.68/123,354.08
  6. Step 6: Final answer
    x = 60,381.48

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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.