Home / 125,143.23-172,701.96-68,554.59

Finding the Fourth Proportional to 125,143.23, 172,701.96 and 68,554.59

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Solution

The fourth proportional to 125,143.23, 172,701.96 and 68,554.59 is: 94,607.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,143.23 : 172,701.96 = 68,554.59 : x
  2. Step 2: Convert to fraction form
    125,143.23/172,701.96 = 68,554.59/x
  3. Step 3: Cross multiply
    125,143.23x = 172,701.96 × 68,554.59
  4. Step 4: Simplify right side
    125,143.23x = 11,839,512,060.00
  5. Step 5: Solve for x
    x = 11,839,512,060.00/125,143.23
  6. Step 6: Final answer
    x = 94,607.69

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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.