Home / 112,306.86-154,983.80-61,320.04

Finding the Fourth Proportional to 112,306.86, 154,983.80 and 61,320.04

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Solution

The fourth proportional to 112,306.86, 154,983.80 and 61,320.04 is: 84,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,306.86 : 154,983.80 = 61,320.04 : x
  2. Step 2: Convert to fraction form
    112,306.86/154,983.80 = 61,320.04/x
  3. Step 3: Cross multiply
    112,306.86x = 154,983.80 × 61,320.04
  4. Step 4: Simplify right side
    112,306.86x = 9,503,612,581.19
  5. Step 5: Solve for x
    x = 9,503,612,581.19/112,306.86
  6. Step 6: Final answer
    x = 84,621.84

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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.