Home / 115,711.40-173,696.70-89,532.20

Finding the Fourth Proportional to 115,711.40, 173,696.70 and 89,532.20

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Solution

The fourth proportional to 115,711.40, 173,696.70 and 89,532.20 is: 134,398.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,711.40 : 173,696.70 = 89,532.20 : x
  2. Step 2: Convert to fraction form
    115,711.40/173,696.70 = 89,532.20/x
  3. Step 3: Cross multiply
    115,711.40x = 173,696.70 × 89,532.20
  4. Step 4: Simplify right side
    115,711.40x = 15,551,447,683.74
  5. Step 5: Solve for x
    x = 15,551,447,683.74/115,711.40
  6. Step 6: Final answer
    x = 134,398.58

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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.