Home / 131,527.70-181,526-74,178.81

Finding the Fourth Proportional to 131,527.70, 181,526 and 74,178.81

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Solution

The fourth proportional to 131,527.70, 181,526 and 74,178.81 is: 102,376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,527.70 : 181,526 = 74,178.81 : x
  2. Step 2: Convert to fraction form
    131,527.70/181,526 = 74,178.81/x
  3. Step 3: Cross multiply
    131,527.70x = 181,526 × 74,178.81
  4. Step 4: Simplify right side
    131,527.70x = 13,465,382,664.06
  5. Step 5: Solve for x
    x = 13,465,382,664.06/131,527.70
  6. Step 6: Final answer
    x = 102,376.78

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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.