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Finding the Fourth Proportional to 156,987.10, 234,943.05 and 94,702.30

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Solution

The fourth proportional to 156,987.10, 234,943.05 and 94,702.30 is: 141,729.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.10 : 234,943.05 = 94,702.30 : x
  2. Step 2: Convert to fraction form
    156,987.10/234,943.05 = 94,702.30/x
  3. Step 3: Cross multiply
    156,987.10x = 234,943.05 × 94,702.30
  4. Step 4: Simplify right side
    156,987.10x = 22,249,647,204.02
  5. Step 5: Solve for x
    x = 22,249,647,204.02/156,987.10
  6. Step 6: Final answer
    x = 141,729.14

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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.