Home / 117,139.16-175,707.18-28,393.43

Finding the Fourth Proportional to 117,139.16, 175,707.18 and 28,393.43

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Solution

The fourth proportional to 117,139.16, 175,707.18 and 28,393.43 is: 42,589.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,139.16 : 175,707.18 = 28,393.43 : x
  2. Step 2: Convert to fraction form
    117,139.16/175,707.18 = 28,393.43/x
  3. Step 3: Cross multiply
    117,139.16x = 175,707.18 × 28,393.43
  4. Step 4: Simplify right side
    117,139.16x = 4,988,928,637.29
  5. Step 5: Solve for x
    x = 4,988,928,637.29/117,139.16
  6. Step 6: Final answer
    x = 42,589.76

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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.