Home / 148,724.24-205,240.20-85,064.72

Finding the Fourth Proportional to 148,724.24, 205,240.20 and 85,064.72

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Solution

The fourth proportional to 148,724.24, 205,240.20 and 85,064.72 is: 117,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,724.24 : 205,240.20 = 85,064.72 : x
  2. Step 2: Convert to fraction form
    148,724.24/205,240.20 = 85,064.72/x
  3. Step 3: Cross multiply
    148,724.24x = 205,240.20 × 85,064.72
  4. Step 4: Simplify right side
    148,724.24x = 17,458,700,145.74
  5. Step 5: Solve for x
    x = 17,458,700,145.74/148,724.24
  6. Step 6: Final answer
    x = 117,389.74

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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.