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Finding the Fourth Proportional to 125,223.70, 172,808.32 and 67,864.67

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Solution

The fourth proportional to 125,223.70, 172,808.32 and 67,864.67 is: 93,653.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,223.70 : 172,808.32 = 67,864.67 : x
  2. Step 2: Convert to fraction form
    125,223.70/172,808.32 = 67,864.67/x
  3. Step 3: Cross multiply
    125,223.70x = 172,808.32 × 67,864.67
  4. Step 4: Simplify right side
    125,223.70x = 11,727,579,610.05
  5. Step 5: Solve for x
    x = 11,727,579,610.05/125,223.70
  6. Step 6: Final answer
    x = 93,653.04

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1.5x scale

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.