Home / 128,571.04-192,869.25-44,320.11

Finding the Fourth Proportional to 128,571.04, 192,869.25 and 44,320.11

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Solution

The fourth proportional to 128,571.04, 192,869.25 and 44,320.11 is: 66,484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,571.04 : 192,869.25 = 44,320.11 : x
  2. Step 2: Convert to fraction form
    128,571.04/192,869.25 = 44,320.11/x
  3. Step 3: Cross multiply
    128,571.04x = 192,869.25 × 44,320.11
  4. Step 4: Simplify right side
    128,571.04x = 8,547,987,265.08
  5. Step 5: Solve for x
    x = 8,547,987,265.08/128,571.04
  6. Step 6: Final answer
    x = 66,484.55

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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.