Home / 132,873.85-183,363.45-72,445.02

Finding the Fourth Proportional to 132,873.85, 183,363.45 and 72,445.02

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Solution

The fourth proportional to 132,873.85, 183,363.45 and 72,445.02 is: 99,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,873.85 : 183,363.45 = 72,445.02 : x
  2. Step 2: Convert to fraction form
    132,873.85/183,363.45 = 72,445.02/x
  3. Step 3: Cross multiply
    132,873.85x = 183,363.45 × 72,445.02
  4. Step 4: Simplify right side
    132,873.85x = 13,283,767,843.24
  5. Step 5: Solve for x
    x = 13,283,767,843.24/132,873.85
  6. Step 6: Final answer
    x = 99,972.78

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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.