Home / 158,358.13-218,451.40-97,909.45

Finding the Fourth Proportional to 158,358.13, 218,451.40 and 97,909.45

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Solution

The fourth proportional to 158,358.13, 218,451.40 and 97,909.45 is: 135,063.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,358.13 : 218,451.40 = 97,909.45 : x
  2. Step 2: Convert to fraction form
    158,358.13/218,451.40 = 97,909.45/x
  3. Step 3: Cross multiply
    158,358.13x = 218,451.40 × 97,909.45
  4. Step 4: Simplify right side
    158,358.13x = 21,388,456,425.73
  5. Step 5: Solve for x
    x = 21,388,456,425.73/158,358.13
  6. Step 6: Final answer
    x = 135,063.84

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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.