Home / 86,948.40-130,422.60-69,452.40

Finding the Fourth Proportional to 86,948.40, 130,422.60 and 69,452.40

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Solution

The fourth proportional to 86,948.40, 130,422.60 and 69,452.40 is: 104,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,948.40 : 130,422.60 = 69,452.40 : x
  2. Step 2: Convert to fraction form
    86,948.40/130,422.60 = 69,452.40/x
  3. Step 3: Cross multiply
    86,948.40x = 130,422.60 × 69,452.40
  4. Step 4: Simplify right side
    86,948.40x = 9,058,162,584.24
  5. Step 5: Solve for x
    x = 9,058,162,584.24/86,948.40
  6. Step 6: Final answer
    x = 104,178.60

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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.