Home / 134,717.80-185,911.89-74,290.90

Finding the Fourth Proportional to 134,717.80, 185,911.89 and 74,290.90

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Solution

The fourth proportional to 134,717.80, 185,911.89 and 74,290.90 is: 102,522.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,717.80 : 185,911.89 = 74,290.90 : x
  2. Step 2: Convert to fraction form
    134,717.80/185,911.89 = 74,290.90/x
  3. Step 3: Cross multiply
    134,717.80x = 185,911.89 × 74,290.90
  4. Step 4: Simplify right side
    134,717.80x = 13,811,561,628.80
  5. Step 5: Solve for x
    x = 13,811,561,628.80/134,717.80
  6. Step 6: Final answer
    x = 102,522.17

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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.