Home / 114,931.80-172,446.30-72,844.20

Finding the Fourth Proportional to 114,931.80, 172,446.30 and 72,844.20

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Solution

The fourth proportional to 114,931.80, 172,446.30 and 72,844.20 is: 109,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,931.80 : 172,446.30 = 72,844.20 : x
  2. Step 2: Convert to fraction form
    114,931.80/172,446.30 = 72,844.20/x
  3. Step 3: Cross multiply
    114,931.80x = 172,446.30 × 72,844.20
  4. Step 4: Simplify right side
    114,931.80x = 12,561,712,766.46
  5. Step 5: Solve for x
    x = 12,561,712,766.46/114,931.80
  6. Step 6: Final answer
    x = 109,297.10

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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.