Home / 99,144.66-137,088.72-97,542.21

Finding the Fourth Proportional to 99,144.66, 137,088.72 and 97,542.21

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Solution

The fourth proportional to 99,144.66, 137,088.72 and 97,542.21 is: 134,872.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,144.66 : 137,088.72 = 97,542.21 : x
  2. Step 2: Convert to fraction form
    99,144.66/137,088.72 = 97,542.21/x
  3. Step 3: Cross multiply
    99,144.66x = 137,088.72 × 97,542.21
  4. Step 4: Simplify right side
    99,144.66x = 13,371,936,714.87
  5. Step 5: Solve for x
    x = 13,371,936,714.87/99,144.66
  6. Step 6: Final answer
    x = 134,872.99

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1.5x scale

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.