Home / 156,402.41-215,805.26-99,001.35

Finding the Fourth Proportional to 156,402.41, 215,805.26 and 99,001.35

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Solution

The fourth proportional to 156,402.41, 215,805.26 and 99,001.35 is: 136,602.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,402.41 : 215,805.26 = 99,001.35 : x
  2. Step 2: Convert to fraction form
    156,402.41/215,805.26 = 99,001.35/x
  3. Step 3: Cross multiply
    156,402.41x = 215,805.26 × 99,001.35
  4. Step 4: Simplify right side
    156,402.41x = 21,365,012,324.60
  5. Step 5: Solve for x
    x = 21,365,012,324.60/156,402.41
  6. Step 6: Final answer
    x = 136,602.84

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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.