Home / 117,139.08-175,708.61-28,392.59

Finding the Fourth Proportional to 117,139.08, 175,708.61 and 28,392.59

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Solution

The fourth proportional to 117,139.08, 175,708.61 and 28,392.59 is: 42,588.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,139.08 : 175,708.61 = 28,392.59 : x
  2. Step 2: Convert to fraction form
    117,139.08/175,708.61 = 28,392.59/x
  3. Step 3: Cross multiply
    117,139.08x = 175,708.61 × 28,392.59
  4. Step 4: Simplify right side
    117,139.08x = 4,988,822,523.20
  5. Step 5: Solve for x
    x = 4,988,822,523.20/117,139.08
  6. Step 6: Final answer
    x = 42,588.88

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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.