Home / 99,100.04-148,691.70-61,691.40

Finding the Fourth Proportional to 99,100.04, 148,691.70 and 61,691.40

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Solution

The fourth proportional to 99,100.04, 148,691.70 and 61,691.40 is: 92,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,100.04 : 148,691.70 = 61,691.40 : x
  2. Step 2: Convert to fraction form
    99,100.04/148,691.70 = 61,691.40/x
  3. Step 3: Cross multiply
    99,100.04x = 148,691.70 × 61,691.40
  4. Step 4: Simplify right side
    99,100.04x = 9,172,999,141.38
  5. Step 5: Solve for x
    x = 9,172,999,141.38/99,100.04
  6. Step 6: Final answer
    x = 92,563.03

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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.