Home / 125,095.34-172,459.96-79,132.11

Finding the Fourth Proportional to 125,095.34, 172,459.96 and 79,132.11

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Solution

The fourth proportional to 125,095.34, 172,459.96 and 79,132.11 is: 109,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,095.34 : 172,459.96 = 79,132.11 : x
  2. Step 2: Convert to fraction form
    125,095.34/172,459.96 = 79,132.11/x
  3. Step 3: Cross multiply
    125,095.34x = 172,459.96 × 79,132.11
  4. Step 4: Simplify right side
    125,095.34x = 13,647,120,525.32
  5. Step 5: Solve for x
    x = 13,647,120,525.32/125,095.34
  6. Step 6: Final answer
    x = 109,093.76

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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.