Home / 157,999.32-217,909.14-112,662.80

Finding the Fourth Proportional to 157,999.32, 217,909.14 and 112,662.80

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Solution

The fourth proportional to 157,999.32, 217,909.14 and 112,662.80 is: 155,382.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,999.32 : 217,909.14 = 112,662.80 : x
  2. Step 2: Convert to fraction form
    157,999.32/217,909.14 = 112,662.80/x
  3. Step 3: Cross multiply
    157,999.32x = 217,909.14 × 112,662.80
  4. Step 4: Simplify right side
    157,999.32x = 24,550,253,857.99
  5. Step 5: Solve for x
    x = 24,550,253,857.99/157,999.32
  6. Step 6: Final answer
    x = 155,382.02

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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.