Home / 154,381.19-213,049.85-86,397.62

Finding the Fourth Proportional to 154,381.19, 213,049.85 and 86,397.62

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Solution

The fourth proportional to 154,381.19, 213,049.85 and 86,397.62 is: 119,230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,381.19 : 213,049.85 = 86,397.62 : x
  2. Step 2: Convert to fraction form
    154,381.19/213,049.85 = 86,397.62/x
  3. Step 3: Cross multiply
    154,381.19x = 213,049.85 × 86,397.62
  4. Step 4: Simplify right side
    154,381.19x = 18,406,998,484.12
  5. Step 5: Solve for x
    x = 18,406,998,484.12/154,381.19
  6. Step 6: Final answer
    x = 119,230.84

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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.