Home / 158,807.04-219,154.10-87,191.69

Finding the Fourth Proportional to 158,807.04, 219,154.10 and 87,191.69

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Solution

The fourth proportional to 158,807.04, 219,154.10 and 87,191.69 is: 120,324.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,807.04 : 219,154.10 = 87,191.69 : x
  2. Step 2: Convert to fraction form
    158,807.04/219,154.10 = 87,191.69/x
  3. Step 3: Cross multiply
    158,807.04x = 219,154.10 × 87,191.69
  4. Step 4: Simplify right side
    158,807.04x = 19,108,414,817.70
  5. Step 5: Solve for x
    x = 19,108,414,817.70/158,807.04
  6. Step 6: Final answer
    x = 120,324.73

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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.