Home / 156,036.90-215,330.94-84,416.88

Finding the Fourth Proportional to 156,036.90, 215,330.94 and 84,416.88

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Solution

The fourth proportional to 156,036.90, 215,330.94 and 84,416.88 is: 116,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,036.90 : 215,330.94 = 84,416.88 : x
  2. Step 2: Convert to fraction form
    156,036.90/215,330.94 = 84,416.88/x
  3. Step 3: Cross multiply
    156,036.90x = 215,330.94 × 84,416.88
  4. Step 4: Simplify right side
    156,036.90x = 18,177,566,122.27
  5. Step 5: Solve for x
    x = 18,177,566,122.27/156,036.90
  6. Step 6: Final answer
    x = 116,495.30

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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.