Home / 131,677.79-181,714.55-74,335.66

Finding the Fourth Proportional to 131,677.79, 181,714.55 and 74,335.66

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Solution

The fourth proportional to 131,677.79, 181,714.55 and 74,335.66 is: 102,582.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,677.79 : 181,714.55 = 74,335.66 : x
  2. Step 2: Convert to fraction form
    131,677.79/181,714.55 = 74,335.66/x
  3. Step 3: Cross multiply
    131,677.79x = 181,714.55 × 74,335.66
  4. Step 4: Simplify right side
    131,677.79x = 13,507,870,179.89
  5. Step 5: Solve for x
    x = 13,507,870,179.89/131,677.79
  6. Step 6: Final answer
    x = 102,582.76

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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.