Home / 102,780.24-154,196.88-31,701.27

Finding the Fourth Proportional to 102,780.24, 154,196.88 and 31,701.27

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Solution

The fourth proportional to 102,780.24, 154,196.88 and 31,701.27 is: 47,560.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,780.24 : 154,196.88 = 31,701.27 : x
  2. Step 2: Convert to fraction form
    102,780.24/154,196.88 = 31,701.27/x
  3. Step 3: Cross multiply
    102,780.24x = 154,196.88 × 31,701.27
  4. Step 4: Simplify right side
    102,780.24x = 4,888,236,155.05
  5. Step 5: Solve for x
    x = 4,888,236,155.05/102,780.24
  6. Step 6: Final answer
    x = 47,560.08

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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.