Home / 132,730.40-183,171.04-72,304.40

Finding the Fourth Proportional to 132,730.40, 183,171.04 and 72,304.40

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Solution

The fourth proportional to 132,730.40, 183,171.04 and 72,304.40 is: 99,781.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,730.40 : 183,171.04 = 72,304.40 : x
  2. Step 2: Convert to fraction form
    132,730.40/183,171.04 = 72,304.40/x
  3. Step 3: Cross multiply
    132,730.40x = 183,171.04 × 72,304.40
  4. Step 4: Simplify right side
    132,730.40x = 13,244,072,144.58
  5. Step 5: Solve for x
    x = 13,244,072,144.58/132,730.40
  6. Step 6: Final answer
    x = 99,781.75

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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.