Home / 154,123.13-231,184.69-43,315.13

Finding the Fourth Proportional to 154,123.13, 231,184.69 and 43,315.13

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Solution

The fourth proportional to 154,123.13, 231,184.69 and 43,315.13 is: 64,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,123.13 : 231,184.69 = 43,315.13 : x
  2. Step 2: Convert to fraction form
    154,123.13/231,184.69 = 43,315.13/x
  3. Step 3: Cross multiply
    154,123.13x = 231,184.69 × 43,315.13
  4. Step 4: Simplify right side
    154,123.13x = 10,013,793,637.15
  5. Step 5: Solve for x
    x = 10,013,793,637.15/154,123.13
  6. Step 6: Final answer
    x = 64,972.69

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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.