Home / 100,985.10-151,507.17-29,909.58

Finding the Fourth Proportional to 100,985.10, 151,507.17 and 29,909.58

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Solution

The fourth proportional to 100,985.10, 151,507.17 and 29,909.58 is: 44,873.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,985.10 : 151,507.17 = 29,909.58 : x
  2. Step 2: Convert to fraction form
    100,985.10/151,507.17 = 29,909.58/x
  3. Step 3: Cross multiply
    100,985.10x = 151,507.17 × 29,909.58
  4. Step 4: Simplify right side
    100,985.10x = 4,531,515,821.69
  5. Step 5: Solve for x
    x = 4,531,515,821.69/100,985.10
  6. Step 6: Final answer
    x = 44,873.11

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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.