Home / 128,165.92-192,081.67-92,746.55

Finding the Fourth Proportional to 128,165.92, 192,081.67 and 92,746.55

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Solution

The fourth proportional to 128,165.92, 192,081.67 and 92,746.55 is: 138,998.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,165.92 : 192,081.67 = 92,746.55 : x
  2. Step 2: Convert to fraction form
    128,165.92/192,081.67 = 92,746.55/x
  3. Step 3: Cross multiply
    128,165.92x = 192,081.67 × 92,746.55
  4. Step 4: Simplify right side
    128,165.92x = 17,814,911,730.53
  5. Step 5: Solve for x
    x = 17,814,911,730.53/128,165.92
  6. Step 6: Final answer
    x = 138,998.82

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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.