Home / 99,331.38-149,094.99-72,962.10

Finding the Fourth Proportional to 99,331.38, 149,094.99 and 72,962.10

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Solution

The fourth proportional to 99,331.38, 149,094.99 and 72,962.10 is: 109,515.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,331.38 : 149,094.99 = 72,962.10 : x
  2. Step 2: Convert to fraction form
    99,331.38/149,094.99 = 72,962.10/x
  3. Step 3: Cross multiply
    99,331.38x = 149,094.99 × 72,962.10
  4. Step 4: Simplify right side
    99,331.38x = 10,878,283,569.88
  5. Step 5: Solve for x
    x = 10,878,283,569.88/99,331.38
  6. Step 6: Final answer
    x = 109,515.08

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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.