Home / 131,512.08-181,475.85-74,148.28

Finding the Fourth Proportional to 131,512.08, 181,475.85 and 74,148.28

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Solution

The fourth proportional to 131,512.08, 181,475.85 and 74,148.28 is: 102,318.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,512.08 : 181,475.85 = 74,148.28 : x
  2. Step 2: Convert to fraction form
    131,512.08/181,475.85 = 74,148.28/x
  3. Step 3: Cross multiply
    131,512.08x = 181,475.85 × 74,148.28
  4. Step 4: Simplify right side
    131,512.08x = 13,456,122,139.04
  5. Step 5: Solve for x
    x = 13,456,122,139.04/131,512.08
  6. Step 6: Final answer
    x = 102,318.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.