Home / 157,736.91-217,666.80-86,116.78

Finding the Fourth Proportional to 157,736.91, 217,666.80 and 86,116.78

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Solution

The fourth proportional to 157,736.91, 217,666.80 and 86,116.78 is: 118,835.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,736.91 : 217,666.80 = 86,116.78 : x
  2. Step 2: Convert to fraction form
    157,736.91/217,666.80 = 86,116.78/x
  3. Step 3: Cross multiply
    157,736.91x = 217,666.80 × 86,116.78
  4. Step 4: Simplify right side
    157,736.91x = 18,744,763,928.90
  5. Step 5: Solve for x
    x = 18,744,763,928.90/157,736.91
  6. Step 6: Final answer
    x = 118,835.62

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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.