Home / 131,676.12-181,736.70-74,332.92

Finding the Fourth Proportional to 131,676.12, 181,736.70 and 74,332.92

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Solution

The fourth proportional to 131,676.12, 181,736.70 and 74,332.92 is: 102,592.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,676.12 : 181,736.70 = 74,332.92 : x
  2. Step 2: Convert to fraction form
    131,676.12/181,736.70 = 74,332.92/x
  3. Step 3: Cross multiply
    131,676.12x = 181,736.70 × 74,332.92
  4. Step 4: Simplify right side
    131,676.12x = 13,509,019,582.16
  5. Step 5: Solve for x
    x = 13,509,019,582.16/131,676.12
  6. Step 6: Final answer
    x = 102,592.78

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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.