Home / 158,370.04-218,542.89-86,750.38

Finding the Fourth Proportional to 158,370.04, 218,542.89 and 86,750.38

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Solution

The fourth proportional to 158,370.04, 218,542.89 and 86,750.38 is: 119,711.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,370.04 : 218,542.89 = 86,750.38 : x
  2. Step 2: Convert to fraction form
    158,370.04/218,542.89 = 86,750.38/x
  3. Step 3: Cross multiply
    158,370.04x = 218,542.89 × 86,750.38
  4. Step 4: Simplify right side
    158,370.04x = 18,958,678,753.80
  5. Step 5: Solve for x
    x = 18,958,678,753.80/158,370.04
  6. Step 6: Final answer
    x = 119,711.27

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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.