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Finding the Fourth Proportional to 153,689, 230,444.94 and 60,143.72

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Solution

The fourth proportional to 153,689, 230,444.94 and 60,143.72 is: 90,180.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,689 : 230,444.94 = 60,143.72 : x
  2. Step 2: Convert to fraction form
    153,689/230,444.94 = 60,143.72/x
  3. Step 3: Cross multiply
    153,689x = 230,444.94 × 60,143.72
  4. Step 4: Simplify right side
    153,689x = 13,859,815,946.78
  5. Step 5: Solve for x
    x = 13,859,815,946.78/153,689
  6. Step 6: Final answer
    x = 90,180.92

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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.