Home / 99,197.78-148,758.59-42,235.57

Finding the Fourth Proportional to 99,197.78, 148,758.59 and 42,235.57

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Solution

The fourth proportional to 99,197.78, 148,758.59 and 42,235.57 is: 63,337.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,197.78 : 148,758.59 = 42,235.57 : x
  2. Step 2: Convert to fraction form
    99,197.78/148,758.59 = 42,235.57/x
  3. Step 3: Cross multiply
    99,197.78x = 148,758.59 × 42,235.57
  4. Step 4: Simplify right side
    99,197.78x = 6,282,902,886.08
  5. Step 5: Solve for x
    x = 6,282,902,886.08/99,197.78
  6. Step 6: Final answer
    x = 63,337.14

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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.