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Finding the Fourth Proportional to 115,573.77, 159,432.03 and 73,156.91

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Solution

The fourth proportional to 115,573.77, 159,432.03 and 73,156.91 is: 100,918.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,573.77 : 159,432.03 = 73,156.91 : x
  2. Step 2: Convert to fraction form
    115,573.77/159,432.03 = 73,156.91/x
  3. Step 3: Cross multiply
    115,573.77x = 159,432.03 × 73,156.91
  4. Step 4: Simplify right side
    115,573.77x = 11,663,553,872.67
  5. Step 5: Solve for x
    x = 11,663,553,872.67/115,573.77
  6. Step 6: Final answer
    x = 100,918.69

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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.