Home / 156,110.16-215,432.32-84,490.80

Finding the Fourth Proportional to 156,110.16, 215,432.32 and 84,490.80

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Solution

The fourth proportional to 156,110.16, 215,432.32 and 84,490.80 is: 116,597.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,110.16 : 215,432.32 = 84,490.80 : x
  2. Step 2: Convert to fraction form
    156,110.16/215,432.32 = 84,490.80/x
  3. Step 3: Cross multiply
    156,110.16x = 215,432.32 × 84,490.80
  4. Step 4: Simplify right side
    156,110.16x = 18,202,049,062.66
  5. Step 5: Solve for x
    x = 18,202,049,062.66/156,110.16
  6. Step 6: Final answer
    x = 116,597.47

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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.