Home / 239,030.60-329,856.30-137,116.40

Finding the Fourth Proportional to 239,030.60, 329,856.30 and 137,116.40

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Solution

The fourth proportional to 239,030.60, 329,856.30 and 137,116.40 is: 189,217.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,030.60 : 329,856.30 = 137,116.40 : x
  2. Step 2: Convert to fraction form
    239,030.60/329,856.30 = 137,116.40/x
  3. Step 3: Cross multiply
    239,030.60x = 329,856.30 × 137,116.40
  4. Step 4: Simplify right side
    239,030.60x = 45,228,706,724.04
  5. Step 5: Solve for x
    x = 45,228,706,724.04/239,030.60
  6. Step 6: Final answer
    x = 189,217.23

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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.