Home / 134,868.28-186,117.30-74,438.92

Finding the Fourth Proportional to 134,868.28, 186,117.30 and 74,438.92

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Solution

The fourth proportional to 134,868.28, 186,117.30 and 74,438.92 is: 102,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,868.28 : 186,117.30 = 74,438.92 : x
  2. Step 2: Convert to fraction form
    134,868.28/186,117.30 = 74,438.92/x
  3. Step 3: Cross multiply
    134,868.28x = 186,117.30 × 74,438.92
  4. Step 4: Simplify right side
    134,868.28x = 13,854,370,805.32
  5. Step 5: Solve for x
    x = 13,854,370,805.32/134,868.28
  6. Step 6: Final answer
    x = 102,725.20

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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.