Home / 124,815.58-172,225.40-71,101.66

Finding the Fourth Proportional to 124,815.58, 172,225.40 and 71,101.66

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Solution

The fourth proportional to 124,815.58, 172,225.40 and 71,101.66 is: 98,108.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,815.58 : 172,225.40 = 71,101.66 : x
  2. Step 2: Convert to fraction form
    124,815.58/172,225.40 = 71,101.66/x
  3. Step 3: Cross multiply
    124,815.58x = 172,225.40 × 71,101.66
  4. Step 4: Simplify right side
    124,815.58x = 12,245,511,834.16
  5. Step 5: Solve for x
    x = 12,245,511,834.16/124,815.58
  6. Step 6: Final answer
    x = 98,108.84

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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.