Home / 99,862.20-149,966.10-53,206.20

Finding the Fourth Proportional to 99,862.20, 149,966.10 and 53,206.20

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Solution

The fourth proportional to 99,862.20, 149,966.10 and 53,206.20 is: 79,901.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,862.20 : 149,966.10 = 53,206.20 : x
  2. Step 2: Convert to fraction form
    99,862.20/149,966.10 = 53,206.20/x
  3. Step 3: Cross multiply
    99,862.20x = 149,966.10 × 53,206.20
  4. Step 4: Simplify right side
    99,862.20x = 7,979,126,309.82
  5. Step 5: Solve for x
    x = 7,979,126,309.82/99,862.20
  6. Step 6: Final answer
    x = 79,901.37

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1.5x scale

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.