Home / 128,109.04-192,084.71-88,176.47

Finding the Fourth Proportional to 128,109.04, 192,084.71 and 88,176.47

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Solution

The fourth proportional to 128,109.04, 192,084.71 and 88,176.47 is: 132,210.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,109.04 : 192,084.71 = 88,176.47 : x
  2. Step 2: Convert to fraction form
    128,109.04/192,084.71 = 88,176.47/x
  3. Step 3: Cross multiply
    128,109.04x = 192,084.71 × 88,176.47
  4. Step 4: Simplify right side
    128,109.04x = 16,937,350,267.47
  5. Step 5: Solve for x
    x = 16,937,350,267.47/128,109.04
  6. Step 6: Final answer
    x = 132,210.42

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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.