Home / 117,139.14-175,707.16-28,393.45

Finding the Fourth Proportional to 117,139.14, 175,707.16 and 28,393.45

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Solution

The fourth proportional to 117,139.14, 175,707.16 and 28,393.45 is: 42,589.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,139.14 : 175,707.16 = 28,393.45 : x
  2. Step 2: Convert to fraction form
    117,139.14/175,707.16 = 28,393.45/x
  3. Step 3: Cross multiply
    117,139.14x = 175,707.16 × 28,393.45
  4. Step 4: Simplify right side
    117,139.14x = 4,988,931,951.85
  5. Step 5: Solve for x
    x = 4,988,931,951.85/117,139.14
  6. Step 6: Final answer
    x = 42,589.79

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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.