Home / 109,523.52-151,143.84-61,772.40

Finding the Fourth Proportional to 109,523.52, 151,143.84 and 61,772.40

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Solution

The fourth proportional to 109,523.52, 151,143.84 and 61,772.40 is: 85,246.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,523.52 : 151,143.84 = 61,772.40 : x
  2. Step 2: Convert to fraction form
    109,523.52/151,143.84 = 61,772.40/x
  3. Step 3: Cross multiply
    109,523.52x = 151,143.84 × 61,772.40
  4. Step 4: Simplify right side
    109,523.52x = 9,336,517,742.02
  5. Step 5: Solve for x
    x = 9,336,517,742.02/109,523.52
  6. Step 6: Final answer
    x = 85,246.69

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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.