Home / 124,788.32-172,238.48-71,104.98

Finding the Fourth Proportional to 124,788.32, 172,238.48 and 71,104.98

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Solution

The fourth proportional to 124,788.32, 172,238.48 and 71,104.98 is: 98,142.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,788.32 : 172,238.48 = 71,104.98 : x
  2. Step 2: Convert to fraction form
    124,788.32/172,238.48 = 71,104.98/x
  3. Step 3: Cross multiply
    124,788.32x = 172,238.48 × 71,104.98
  4. Step 4: Simplify right side
    124,788.32x = 12,247,013,675.63
  5. Step 5: Solve for x
    x = 12,247,013,675.63/124,788.32
  6. Step 6: Final answer
    x = 98,142.31

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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.