Home / 124,900.87-172,358.93-71,203.19

Finding the Fourth Proportional to 124,900.87, 172,358.93 and 71,203.19

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Solution

The fourth proportional to 124,900.87, 172,358.93 and 71,203.19 is: 98,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,900.87 : 172,358.93 = 71,203.19 : x
  2. Step 2: Convert to fraction form
    124,900.87/172,358.93 = 71,203.19/x
  3. Step 3: Cross multiply
    124,900.87x = 172,358.93 × 71,203.19
  4. Step 4: Simplify right side
    124,900.87x = 12,272,506,249.89
  5. Step 5: Solve for x
    x = 12,272,506,249.89/124,900.87
  6. Step 6: Final answer
    x = 98,257.97

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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.