Home / 135,300.34-186,711.68-74,870.94

Finding the Fourth Proportional to 135,300.34, 186,711.68 and 74,870.94

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Solution

The fourth proportional to 135,300.34, 186,711.68 and 74,870.94 is: 103,320.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,300.34 : 186,711.68 = 74,870.94 : x
  2. Step 2: Convert to fraction form
    135,300.34/186,711.68 = 74,870.94/x
  3. Step 3: Cross multiply
    135,300.34x = 186,711.68 × 74,870.94
  4. Step 4: Simplify right side
    135,300.34x = 13,979,279,456.78
  5. Step 5: Solve for x
    x = 13,979,279,456.78/135,300.34
  6. Step 6: Final answer
    x = 103,320.36

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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.