Home / 99,428.02-137,207.88-54,104.94

Finding the Fourth Proportional to 99,428.02, 137,207.88 and 54,104.94

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Solution

The fourth proportional to 99,428.02, 137,207.88 and 54,104.94 is: 74,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,428.02 : 137,207.88 = 54,104.94 : x
  2. Step 2: Convert to fraction form
    99,428.02/137,207.88 = 54,104.94/x
  3. Step 3: Cross multiply
    99,428.02x = 137,207.88 × 54,104.94
  4. Step 4: Simplify right side
    99,428.02x = 7,423,624,114.93
  5. Step 5: Solve for x
    x = 7,423,624,114.93/99,428.02
  6. Step 6: Final answer
    x = 74,663.30

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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.