Home / 148,304.79-204,659.57-80,320.20

Finding the Fourth Proportional to 148,304.79, 204,659.57 and 80,320.20

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Solution

The fourth proportional to 148,304.79, 204,659.57 and 80,320.20 is: 110,841.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,304.79 : 204,659.57 = 80,320.20 : x
  2. Step 2: Convert to fraction form
    148,304.79/204,659.57 = 80,320.20/x
  3. Step 3: Cross multiply
    148,304.79x = 204,659.57 × 80,320.20
  4. Step 4: Simplify right side
    148,304.79x = 16,438,297,192.71
  5. Step 5: Solve for x
    x = 16,438,297,192.71/148,304.79
  6. Step 6: Final answer
    x = 110,841.31

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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.