Home / 131,374.51-181,306.01-74,785.88

Finding the Fourth Proportional to 131,374.51, 181,306.01 and 74,785.88

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Solution

The fourth proportional to 131,374.51, 181,306.01 and 74,785.88 is: 103,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,374.51 : 181,306.01 = 74,785.88 : x
  2. Step 2: Convert to fraction form
    131,374.51/181,306.01 = 74,785.88/x
  3. Step 3: Cross multiply
    131,374.51x = 181,306.01 × 74,785.88
  4. Step 4: Simplify right side
    131,374.51x = 13,559,129,507.14
  5. Step 5: Solve for x
    x = 13,559,129,507.14/131,374.51
  6. Step 6: Final answer
    x = 103,209.74

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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.