Home / 123,631.52-170,611.08-67,042.76

Finding the Fourth Proportional to 123,631.52, 170,611.08 and 67,042.76

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Solution

The fourth proportional to 123,631.52, 170,611.08 and 67,042.76 is: 92,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,631.52 : 170,611.08 = 67,042.76 : x
  2. Step 2: Convert to fraction form
    123,631.52/170,611.08 = 67,042.76/x
  3. Step 3: Cross multiply
    123,631.52x = 170,611.08 × 67,042.76
  4. Step 4: Simplify right side
    123,631.52x = 11,438,237,689.78
  5. Step 5: Solve for x
    x = 11,438,237,689.78/123,631.52
  6. Step 6: Final answer
    x = 92,518.78

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1.5x scale

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.