Home / 146,949.60-202,772.40-99,306.72

Finding the Fourth Proportional to 146,949.60, 202,772.40 and 99,306.72

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Solution

The fourth proportional to 146,949.60, 202,772.40 and 99,306.72 is: 137,031.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,949.60 : 202,772.40 = 99,306.72 : x
  2. Step 2: Convert to fraction form
    146,949.60/202,772.40 = 99,306.72/x
  3. Step 3: Cross multiply
    146,949.60x = 202,772.40 × 99,306.72
  4. Step 4: Simplify right side
    146,949.60x = 20,136,661,950.53
  5. Step 5: Solve for x
    x = 20,136,661,950.53/146,949.60
  6. Step 6: Final answer
    x = 137,031.08

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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.