Home / 131,565.06-181,554.90-74,965.50

Finding the Fourth Proportional to 131,565.06, 181,554.90 and 74,965.50

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Solution

The fourth proportional to 131,565.06, 181,554.90 and 74,965.50 is: 103,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,565.06 : 181,554.90 = 74,965.50 : x
  2. Step 2: Convert to fraction form
    131,565.06/181,554.90 = 74,965.50/x
  3. Step 3: Cross multiply
    131,565.06x = 181,554.90 × 74,965.50
  4. Step 4: Simplify right side
    131,565.06x = 13,610,353,855.95
  5. Step 5: Solve for x
    x = 13,610,353,855.95/131,565.06
  6. Step 6: Final answer
    x = 103,449.61

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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.