Home / 136,565.28-188,444.88-82,863.36

Finding the Fourth Proportional to 136,565.28, 188,444.88 and 82,863.36

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Solution

The fourth proportional to 136,565.28, 188,444.88 and 82,863.36 is: 114,342.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,565.28 : 188,444.88 = 82,863.36 : x
  2. Step 2: Convert to fraction form
    136,565.28/188,444.88 = 82,863.36/x
  3. Step 3: Cross multiply
    136,565.28x = 188,444.88 × 82,863.36
  4. Step 4: Simplify right side
    136,565.28x = 15,615,175,931.60
  5. Step 5: Solve for x
    x = 15,615,175,931.60/136,565.28
  6. Step 6: Final answer
    x = 114,342.21

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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.