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Finding the Fourth Proportional to 185,875.68, 278,837.28 and 67,602.72

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Solution

The fourth proportional to 185,875.68, 278,837.28 and 67,602.72 is: 101,412.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,875.68 : 278,837.28 = 67,602.72 : x
  2. Step 2: Convert to fraction form
    185,875.68/278,837.28 = 67,602.72/x
  3. Step 3: Cross multiply
    185,875.68x = 278,837.28 × 67,602.72
  4. Step 4: Simplify right side
    185,875.68x = 18,850,158,565.40
  5. Step 5: Solve for x
    x = 18,850,158,565.40/185,875.68
  6. Step 6: Final answer
    x = 101,412.72

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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.