Home / 132,811.04-183,273.84-72,380.40

Finding the Fourth Proportional to 132,811.04, 183,273.84 and 72,380.40

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Solution

The fourth proportional to 132,811.04, 183,273.84 and 72,380.40 is: 99,882.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,811.04 : 183,273.84 = 72,380.40 : x
  2. Step 2: Convert to fraction form
    132,811.04/183,273.84 = 72,380.40/x
  3. Step 3: Cross multiply
    132,811.04x = 183,273.84 × 72,380.40
  4. Step 4: Simplify right side
    132,811.04x = 13,265,433,848.74
  5. Step 5: Solve for x
    x = 13,265,433,848.74/132,811.04
  6. Step 6: Final answer
    x = 99,882.02

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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.