Home / 125,109.81-172,653.26-68,521.59

Finding the Fourth Proportional to 125,109.81, 172,653.26 and 68,521.59

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Solution

The fourth proportional to 125,109.81, 172,653.26 and 68,521.59 is: 94,560.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,109.81 : 172,653.26 = 68,521.59 : x
  2. Step 2: Convert to fraction form
    125,109.81/172,653.26 = 68,521.59/x
  3. Step 3: Cross multiply
    125,109.81x = 172,653.26 × 68,521.59
  4. Step 4: Simplify right side
    125,109.81x = 11,830,475,551.28
  5. Step 5: Solve for x
    x = 11,830,475,551.28/125,109.81
  6. Step 6: Final answer
    x = 94,560.73

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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.