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Finding the Fourth Proportional to 103,150.08, 154,781.28 and 47,746.08

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Solution

The fourth proportional to 103,150.08, 154,781.28 and 47,746.08 is: 71,645.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,150.08 : 154,781.28 = 47,746.08 : x
  2. Step 2: Convert to fraction form
    103,150.08/154,781.28 = 47,746.08/x
  3. Step 3: Cross multiply
    103,150.08x = 154,781.28 × 47,746.08
  4. Step 4: Simplify right side
    103,150.08x = 7,390,199,377.38
  5. Step 5: Solve for x
    x = 7,390,199,377.38/103,150.08
  6. Step 6: Final answer
    x = 71,645.12

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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.