Home / 115,258.40-173,017.20-89,079.20

Finding the Fourth Proportional to 115,258.40, 173,017.20 and 89,079.20

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Solution

The fourth proportional to 115,258.40, 173,017.20 and 89,079.20 is: 133,718.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,258.40 : 173,017.20 = 89,079.20 : x
  2. Step 2: Convert to fraction form
    115,258.40/173,017.20 = 89,079.20/x
  3. Step 3: Cross multiply
    115,258.40x = 173,017.20 × 89,079.20
  4. Step 4: Simplify right side
    115,258.40x = 15,412,233,762.24
  5. Step 5: Solve for x
    x = 15,412,233,762.24/115,258.40
  6. Step 6: Final answer
    x = 133,718.96

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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.