Home / 125,291.64-172,902.24-68,706.66

Finding the Fourth Proportional to 125,291.64, 172,902.24 and 68,706.66

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Solution

The fourth proportional to 125,291.64, 172,902.24 and 68,706.66 is: 94,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,291.64 : 172,902.24 = 68,706.66 : x
  2. Step 2: Convert to fraction form
    125,291.64/172,902.24 = 68,706.66/x
  3. Step 3: Cross multiply
    125,291.64x = 172,902.24 × 68,706.66
  4. Step 4: Simplify right side
    125,291.64x = 11,879,535,416.92
  5. Step 5: Solve for x
    x = 11,879,535,416.92/125,291.64
  6. Step 6: Final answer
    x = 94,815.07

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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.