Home / 115,766.46-173,648.70-90,487.23

Finding the Fourth Proportional to 115,766.46, 173,648.70 and 90,487.23

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Solution

The fourth proportional to 115,766.46, 173,648.70 and 90,487.23 is: 135,730.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,766.46 : 173,648.70 = 90,487.23 : x
  2. Step 2: Convert to fraction form
    115,766.46/173,648.70 = 90,487.23/x
  3. Step 3: Cross multiply
    115,766.46x = 173,648.70 × 90,487.23
  4. Step 4: Simplify right side
    115,766.46x = 15,712,989,856.10
  5. Step 5: Solve for x
    x = 15,712,989,856.10/115,766.46
  6. Step 6: Final answer
    x = 135,730.07

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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.