Home / 115,920.10-173,880.15-89,643.70

Finding the Fourth Proportional to 115,920.10, 173,880.15 and 89,643.70

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Solution

The fourth proportional to 115,920.10, 173,880.15 and 89,643.70 is: 134,465.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,920.10 : 173,880.15 = 89,643.70 : x
  2. Step 2: Convert to fraction form
    115,920.10/173,880.15 = 89,643.70/x
  3. Step 3: Cross multiply
    115,920.10x = 173,880.15 × 89,643.70
  4. Step 4: Simplify right side
    115,920.10x = 15,587,260,002.56
  5. Step 5: Solve for x
    x = 15,587,260,002.56/115,920.10
  6. Step 6: Final answer
    x = 134,465.55

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1.5x scale

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.