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Finding the Fourth Proportional to 156,898.89, 235,274.42 and 56,988.63

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Solution

The fourth proportional to 156,898.89, 235,274.42 and 56,988.63 is: 85,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,898.89 : 235,274.42 = 56,988.63 : x
  2. Step 2: Convert to fraction form
    156,898.89/235,274.42 = 56,988.63/x
  3. Step 3: Cross multiply
    156,898.89x = 235,274.42 × 56,988.63
  4. Step 4: Simplify right side
    156,898.89x = 13,407,966,584.90
  5. Step 5: Solve for x
    x = 13,407,966,584.90/156,898.89
  6. Step 6: Final answer
    x = 85,456.10

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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.