Home / 134,569.12-185,713.68-74,953.12

Finding the Fourth Proportional to 134,569.12, 185,713.68 and 74,953.12

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Solution

The fourth proportional to 134,569.12, 185,713.68 and 74,953.12 is: 103,439.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,569.12 : 185,713.68 = 74,953.12 : x
  2. Step 2: Convert to fraction form
    134,569.12/185,713.68 = 74,953.12/x
  3. Step 3: Cross multiply
    134,569.12x = 185,713.68 × 74,953.12
  4. Step 4: Simplify right side
    134,569.12x = 13,919,819,742.68
  5. Step 5: Solve for x
    x = 13,919,819,742.68/134,569.12
  6. Step 6: Final answer
    x = 103,439.93

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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.