Home / 154,676.46-213,471.18-86,711.76

Finding the Fourth Proportional to 154,676.46, 213,471.18 and 86,711.76

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Solution

The fourth proportional to 154,676.46, 213,471.18 and 86,711.76 is: 119,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,676.46 : 213,471.18 = 86,711.76 : x
  2. Step 2: Convert to fraction form
    154,676.46/213,471.18 = 86,711.76/x
  3. Step 3: Cross multiply
    154,676.46x = 213,471.18 × 86,711.76
  4. Step 4: Simplify right side
    154,676.46x = 18,510,461,727.08
  5. Step 5: Solve for x
    x = 18,510,461,727.08/154,676.46
  6. Step 6: Final answer
    x = 119,672.13

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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.