Home / 131,067.04-180,872.32-74,478.40

Finding the Fourth Proportional to 131,067.04, 180,872.32 and 74,478.40

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Solution

The fourth proportional to 131,067.04, 180,872.32 and 74,478.40 is: 102,780.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,067.04 : 180,872.32 = 74,478.40 : x
  2. Step 2: Convert to fraction form
    131,067.04/180,872.32 = 74,478.40/x
  3. Step 3: Cross multiply
    131,067.04x = 180,872.32 × 74,478.40
  4. Step 4: Simplify right side
    131,067.04x = 13,471,080,997.89
  5. Step 5: Solve for x
    x = 13,471,080,997.89/131,067.04
  6. Step 6: Final answer
    x = 102,780.08

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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.