Home / 131,106.50-180,927-74,521.52

Finding the Fourth Proportional to 131,106.50, 180,927 and 74,521.52

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Solution

The fourth proportional to 131,106.50, 180,927 and 74,521.52 is: 102,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,106.50 : 180,927 = 74,521.52 : x
  2. Step 2: Convert to fraction form
    131,106.50/180,927 = 74,521.52/x
  3. Step 3: Cross multiply
    131,106.50x = 180,927 × 74,521.52
  4. Step 4: Simplify right side
    131,106.50x = 13,482,955,049.04
  5. Step 5: Solve for x
    x = 13,482,955,049.04/131,106.50
  6. Step 6: Final answer
    x = 102,839.71

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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.