Home / 157,949.24-217,969.56-86,329.76

Finding the Fourth Proportional to 157,949.24, 217,969.56 and 86,329.76

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Solution

The fourth proportional to 157,949.24, 217,969.56 and 86,329.76 is: 119,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,949.24 : 217,969.56 = 86,329.76 : x
  2. Step 2: Convert to fraction form
    157,949.24/217,969.56 = 86,329.76/x
  3. Step 3: Cross multiply
    157,949.24x = 217,969.56 × 86,329.76
  4. Step 4: Simplify right side
    157,949.24x = 18,817,259,802.11
  5. Step 5: Solve for x
    x = 18,817,259,802.11/157,949.24
  6. Step 6: Final answer
    x = 119,134.85

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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.