Home / 90,803.28-136,318.32-61,351.68

Finding the Fourth Proportional to 90,803.28, 136,318.32 and 61,351.68

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Solution

The fourth proportional to 90,803.28, 136,318.32 and 61,351.68 is: 92,104.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,803.28 : 136,318.32 = 61,351.68 : x
  2. Step 2: Convert to fraction form
    90,803.28/136,318.32 = 61,351.68/x
  3. Step 3: Cross multiply
    90,803.28x = 136,318.32 × 61,351.68
  4. Step 4: Simplify right side
    90,803.28x = 8,363,357,946.78
  5. Step 5: Solve for x
    x = 8,363,357,946.78/90,803.28
  6. Step 6: Final answer
    x = 92,104.14

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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.