Home / 125,142.72-172,701.27-68,554.10

Finding the Fourth Proportional to 125,142.72, 172,701.27 and 68,554.10

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Solution

The fourth proportional to 125,142.72, 172,701.27 and 68,554.10 is: 94,607.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,142.72 : 172,701.27 = 68,554.10 : x
  2. Step 2: Convert to fraction form
    125,142.72/172,701.27 = 68,554.10/x
  3. Step 3: Cross multiply
    125,142.72x = 172,701.27 × 68,554.10
  4. Step 4: Simplify right side
    125,142.72x = 11,839,380,133.71
  5. Step 5: Solve for x
    x = 11,839,380,133.71/125,142.72
  6. Step 6: Final answer
    x = 94,607.02

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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.