Home / 115,423.08-159,283.22-64,432.86

Finding the Fourth Proportional to 115,423.08, 159,283.22 and 64,432.86

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Solution

The fourth proportional to 115,423.08, 159,283.22 and 64,432.86 is: 88,916.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,423.08 : 159,283.22 = 64,432.86 : x
  2. Step 2: Convert to fraction form
    115,423.08/159,283.22 = 64,432.86/x
  3. Step 3: Cross multiply
    115,423.08x = 159,283.22 × 64,432.86
  4. Step 4: Simplify right side
    115,423.08x = 10,263,073,414.61
  5. Step 5: Solve for x
    x = 10,263,073,414.61/115,423.08
  6. Step 6: Final answer
    x = 88,916.99

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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.