Home / 115,242.48-158,993.28-67,478.40

Finding the Fourth Proportional to 115,242.48, 158,993.28 and 67,478.40

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Solution

The fourth proportional to 115,242.48, 158,993.28 and 67,478.40 is: 93,095.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,242.48 : 158,993.28 = 67,478.40 : x
  2. Step 2: Convert to fraction form
    115,242.48/158,993.28 = 67,478.40/x
  3. Step 3: Cross multiply
    115,242.48x = 158,993.28 × 67,478.40
  4. Step 4: Simplify right side
    115,242.48x = 10,728,612,145.15
  5. Step 5: Solve for x
    x = 10,728,612,145.15/115,242.48
  6. Step 6: Final answer
    x = 93,095.98

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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.