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Finding the Fourth Proportional to 144,658.08, 217,127.28 and 69,830.88

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Solution

The fourth proportional to 144,658.08, 217,127.28 and 69,830.88 is: 104,813.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,658.08 : 217,127.28 = 69,830.88 : x
  2. Step 2: Convert to fraction form
    144,658.08/217,127.28 = 69,830.88/x
  3. Step 3: Cross multiply
    144,658.08x = 217,127.28 × 69,830.88
  4. Step 4: Simplify right side
    144,658.08x = 15,162,189,034.41
  5. Step 5: Solve for x
    x = 15,162,189,034.41/144,658.08
  6. Step 6: Final answer
    x = 104,813.98

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1.5x scale

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.