Home / 257,143.11-385,740.03-88,641.24

Finding the Fourth Proportional to 257,143.11, 385,740.03 and 88,641.24

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Solution

The fourth proportional to 257,143.11, 385,740.03 and 88,641.24 is: 132,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,143.11 : 385,740.03 = 88,641.24 : x
  2. Step 2: Convert to fraction form
    257,143.11/385,740.03 = 88,641.24/x
  3. Step 3: Cross multiply
    257,143.11x = 385,740.03 × 88,641.24
  4. Step 4: Simplify right side
    257,143.11x = 34,192,474,576.84
  5. Step 5: Solve for x
    x = 34,192,474,576.84/257,143.11
  6. Step 6: Final answer
    x = 132,970.60

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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.