Home / 131,577.60-181,579-74,219.65

Finding the Fourth Proportional to 131,577.60, 181,579 and 74,219.65

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Solution

The fourth proportional to 131,577.60, 181,579 and 74,219.65 is: 102,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,577.60 : 181,579 = 74,219.65 : x
  2. Step 2: Convert to fraction form
    131,577.60/181,579 = 74,219.65/x
  3. Step 3: Cross multiply
    131,577.60x = 181,579 × 74,219.65
  4. Step 4: Simplify right side
    131,577.60x = 13,476,729,827.35
  5. Step 5: Solve for x
    x = 13,476,729,827.35/131,577.60
  6. Step 6: Final answer
    x = 102,424.20

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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.