Home / 157,941.18-217,952.28-86,323.68

Finding the Fourth Proportional to 157,941.18, 217,952.28 and 86,323.68

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Solution

The fourth proportional to 157,941.18, 217,952.28 and 86,323.68 is: 119,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,941.18 : 217,952.28 = 86,323.68 : x
  2. Step 2: Convert to fraction form
    157,941.18/217,952.28 = 86,323.68/x
  3. Step 3: Cross multiply
    157,941.18x = 217,952.28 × 86,323.68
  4. Step 4: Simplify right side
    157,941.18x = 18,814,442,873.99
  5. Step 5: Solve for x
    x = 18,814,442,873.99/157,941.18
  6. Step 6: Final answer
    x = 119,123.10

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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.