Home / 158,077.27-218,142.01-86,455.76

Finding the Fourth Proportional to 158,077.27, 218,142.01 and 86,455.76

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Solution

The fourth proportional to 158,077.27, 218,142.01 and 86,455.76 is: 119,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,077.27 : 218,142.01 = 86,455.76 : x
  2. Step 2: Convert to fraction form
    158,077.27/218,142.01 = 86,455.76/x
  3. Step 3: Cross multiply
    158,077.27x = 218,142.01 × 86,455.76
  4. Step 4: Simplify right side
    158,077.27x = 18,859,632,279.84
  5. Step 5: Solve for x
    x = 18,859,632,279.84/158,077.27
  6. Step 6: Final answer
    x = 119,306.41

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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.