Home / 109,640.12-151,294.92-61,898.18

Finding the Fourth Proportional to 109,640.12, 151,294.92 and 61,898.18

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Solution

The fourth proportional to 109,640.12, 151,294.92 and 61,898.18 is: 85,414.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,640.12 : 151,294.92 = 61,898.18 : x
  2. Step 2: Convert to fraction form
    109,640.12/151,294.92 = 61,898.18/x
  3. Step 3: Cross multiply
    109,640.12x = 151,294.92 × 61,898.18
  4. Step 4: Simplify right side
    109,640.12x = 9,364,880,191.25
  5. Step 5: Solve for x
    x = 9,364,880,191.25/109,640.12
  6. Step 6: Final answer
    x = 85,414.72

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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.