Home / 159,631.40-239,447.10-128,527.40

Finding the Fourth Proportional to 159,631.40, 239,447.10 and 128,527.40

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Solution

The fourth proportional to 159,631.40, 239,447.10 and 128,527.40 is: 192,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,631.40 : 239,447.10 = 128,527.40 : x
  2. Step 2: Convert to fraction form
    159,631.40/239,447.10 = 128,527.40/x
  3. Step 3: Cross multiply
    159,631.40x = 239,447.10 × 128,527.40
  4. Step 4: Simplify right side
    159,631.40x = 30,775,513,200.54
  5. Step 5: Solve for x
    x = 30,775,513,200.54/159,631.40
  6. Step 6: Final answer
    x = 192,791.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.