Home / 132,731.90-183,173.10-72,305.90

Finding the Fourth Proportional to 132,731.90, 183,173.10 and 72,305.90

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Solution

The fourth proportional to 132,731.90, 183,173.10 and 72,305.90 is: 99,783.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,731.90 : 183,173.10 = 72,305.90 : x
  2. Step 2: Convert to fraction form
    132,731.90/183,173.10 = 72,305.90/x
  3. Step 3: Cross multiply
    132,731.90x = 183,173.10 × 72,305.90
  4. Step 4: Simplify right side
    132,731.90x = 13,244,495,851.29
  5. Step 5: Solve for x
    x = 13,244,495,851.29/132,731.90
  6. Step 6: Final answer
    x = 99,783.82

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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.