Home / 88,001.28-131,364.64-77,360.64

Finding the Fourth Proportional to 88,001.28, 131,364.64 and 77,360.64

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Solution

The fourth proportional to 88,001.28, 131,364.64 and 77,360.64 is: 115,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,001.28 : 131,364.64 = 77,360.64 : x
  2. Step 2: Convert to fraction form
    88,001.28/131,364.64 = 77,360.64/x
  3. Step 3: Cross multiply
    88,001.28x = 131,364.64 × 77,360.64
  4. Step 4: Simplify right side
    88,001.28x = 10,162,452,623.77
  5. Step 5: Solve for x
    x = 10,162,452,623.77/88,001.28
  6. Step 6: Final answer
    x = 115,480.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.