Home / 115,272.77-159,076.10-64,285.55

Finding the Fourth Proportional to 115,272.77, 159,076.10 and 64,285.55

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Solution

The fourth proportional to 115,272.77, 159,076.10 and 64,285.55 is: 88,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,272.77 : 159,076.10 = 64,285.55 : x
  2. Step 2: Convert to fraction form
    115,272.77/159,076.10 = 64,285.55/x
  3. Step 3: Cross multiply
    115,272.77x = 159,076.10 × 64,285.55
  4. Step 4: Simplify right side
    115,272.77x = 10,226,293,463.55
  5. Step 5: Solve for x
    x = 10,226,293,463.55/115,272.77
  6. Step 6: Final answer
    x = 88,713.87

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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.