Home / 111,732.96-154,199.04-61,431.84

Finding the Fourth Proportional to 111,732.96, 154,199.04 and 61,431.84

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Solution

The fourth proportional to 111,732.96, 154,199.04 and 61,431.84 is: 84,780.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,732.96 : 154,199.04 = 61,431.84 : x
  2. Step 2: Convert to fraction form
    111,732.96/154,199.04 = 61,431.84/x
  3. Step 3: Cross multiply
    111,732.96x = 154,199.04 × 61,431.84
  4. Step 4: Simplify right side
    111,732.96x = 9,472,730,753.43
  5. Step 5: Solve for x
    x = 9,472,730,753.43/111,732.96
  6. Step 6: Final answer
    x = 84,780.09

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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.