Home / 102,126.53-153,189.71-31,049.73

Finding the Fourth Proportional to 102,126.53, 153,189.71 and 31,049.73

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Solution

The fourth proportional to 102,126.53, 153,189.71 and 31,049.73 is: 46,574.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,126.53 : 153,189.71 = 31,049.73 : x
  2. Step 2: Convert to fraction form
    102,126.53/153,189.71 = 31,049.73/x
  3. Step 3: Cross multiply
    102,126.53x = 153,189.71 × 31,049.73
  4. Step 4: Simplify right side
    102,126.53x = 4,756,498,979.03
  5. Step 5: Solve for x
    x = 4,756,498,979.03/102,126.53
  6. Step 6: Final answer
    x = 46,574.57

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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.