Home / 147,711.12-221,488.91-100,977.36

Finding the Fourth Proportional to 147,711.12, 221,488.91 and 100,977.36

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Solution

The fourth proportional to 147,711.12, 221,488.91 and 100,977.36 is: 151,412.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,711.12 : 221,488.91 = 100,977.36 : x
  2. Step 2: Convert to fraction form
    147,711.12/221,488.91 = 100,977.36/x
  3. Step 3: Cross multiply
    147,711.12x = 221,488.91 × 100,977.36
  4. Step 4: Simplify right side
    147,711.12x = 22,365,365,401.08
  5. Step 5: Solve for x
    x = 22,365,365,401.08/147,711.12
  6. Step 6: Final answer
    x = 151,412.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.