Home / 160,756.45-221,855.05-89,143.13

Finding the Fourth Proportional to 160,756.45, 221,855.05 and 89,143.13

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Solution

The fourth proportional to 160,756.45, 221,855.05 and 89,143.13 is: 123,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,756.45 : 221,855.05 = 89,143.13 : x
  2. Step 2: Convert to fraction form
    160,756.45/221,855.05 = 89,143.13/x
  3. Step 3: Cross multiply
    160,756.45x = 221,855.05 × 89,143.13
  4. Step 4: Simplify right side
    160,756.45x = 19,776,854,229.37
  5. Step 5: Solve for x
    x = 19,776,854,229.37/160,756.45
  6. Step 6: Final answer
    x = 123,023.71

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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.