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Finding the Fourth Proportional to 139,207.83, 192,106.80 and 75,545.63

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Solution

The fourth proportional to 139,207.83, 192,106.80 and 75,545.63 is: 104,252.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,207.83 : 192,106.80 = 75,545.63 : x
  2. Step 2: Convert to fraction form
    139,207.83/192,106.80 = 75,545.63/x
  3. Step 3: Cross multiply
    139,207.83x = 192,106.80 × 75,545.63
  4. Step 4: Simplify right side
    139,207.83x = 14,512,829,233.28
  5. Step 5: Solve for x
    x = 14,512,829,233.28/139,207.83
  6. Step 6: Final answer
    x = 104,252.97

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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.