Home / 115,831.40-173,876.70-89,652.20

Finding the Fourth Proportional to 115,831.40, 173,876.70 and 89,652.20

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Solution

The fourth proportional to 115,831.40, 173,876.70 and 89,652.20 is: 134,578.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,831.40 : 173,876.70 = 89,652.20 : x
  2. Step 2: Convert to fraction form
    115,831.40/173,876.70 = 89,652.20/x
  3. Step 3: Cross multiply
    115,831.40x = 173,876.70 × 89,652.20
  4. Step 4: Simplify right side
    115,831.40x = 15,588,428,683.74
  5. Step 5: Solve for x
    x = 15,588,428,683.74/115,831.40
  6. Step 6: Final answer
    x = 134,578.61

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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.