Home / 124,731.31-172,137.14-71,021.02

Finding the Fourth Proportional to 124,731.31, 172,137.14 and 71,021.02

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Solution

The fourth proportional to 124,731.31, 172,137.14 and 71,021.02 is: 98,013.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,731.31 : 172,137.14 = 71,021.02 : x
  2. Step 2: Convert to fraction form
    124,731.31/172,137.14 = 71,021.02/x
  3. Step 3: Cross multiply
    124,731.31x = 172,137.14 × 71,021.02
  4. Step 4: Simplify right side
    124,731.31x = 12,225,355,262.68
  5. Step 5: Solve for x
    x = 12,225,355,262.68/124,731.31
  6. Step 6: Final answer
    x = 98,013.52

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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.