Home / 155,882.19-215,117.32-84,262.21

Finding the Fourth Proportional to 155,882.19, 215,117.32 and 84,262.21

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Solution

The fourth proportional to 155,882.19, 215,117.32 and 84,262.21 is: 116,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,882.19 : 215,117.32 = 84,262.21 : x
  2. Step 2: Convert to fraction form
    155,882.19/215,117.32 = 84,262.21/x
  3. Step 3: Cross multiply
    155,882.19x = 215,117.32 × 84,262.21
  4. Step 4: Simplify right side
    155,882.19x = 18,126,260,792.48
  5. Step 5: Solve for x
    x = 18,126,260,792.48/155,882.19
  6. Step 6: Final answer
    x = 116,281.79

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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.