Home / 156,152.35-215,490-84,532.35

Finding the Fourth Proportional to 156,152.35, 215,490 and 84,532.35

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Solution

The fourth proportional to 156,152.35, 215,490 and 84,532.35 is: 116,654.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,152.35 : 215,490 = 84,532.35 : x
  2. Step 2: Convert to fraction form
    156,152.35/215,490 = 84,532.35/x
  3. Step 3: Cross multiply
    156,152.35x = 215,490 × 84,532.35
  4. Step 4: Simplify right side
    156,152.35x = 18,215,876,101.50
  5. Step 5: Solve for x
    x = 18,215,876,101.50/156,152.35
  6. Step 6: Final answer
    x = 116,654.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.