Home / 158,500.13-218,730.38-86,882.76

Finding the Fourth Proportional to 158,500.13, 218,730.38 and 86,882.76

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Solution

The fourth proportional to 158,500.13, 218,730.38 and 86,882.76 is: 119,898.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,500.13 : 218,730.38 = 86,882.76 : x
  2. Step 2: Convert to fraction form
    158,500.13/218,730.38 = 86,882.76/x
  3. Step 3: Cross multiply
    158,500.13x = 218,730.38 × 86,882.76
  4. Step 4: Simplify right side
    158,500.13x = 19,003,898,675.84
  5. Step 5: Solve for x
    x = 19,003,898,675.84/158,500.13
  6. Step 6: Final answer
    x = 119,898.32

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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.