Home / 139,363.07-192,325.20-75,705.17

Finding the Fourth Proportional to 139,363.07, 192,325.20 and 75,705.17

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Solution

The fourth proportional to 139,363.07, 192,325.20 and 75,705.17 is: 104,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,363.07 : 192,325.20 = 75,705.17 : x
  2. Step 2: Convert to fraction form
    139,363.07/192,325.20 = 75,705.17/x
  3. Step 3: Cross multiply
    139,363.07x = 192,325.20 × 75,705.17
  4. Step 4: Simplify right side
    139,363.07x = 14,560,011,961.28
  5. Step 5: Solve for x
    x = 14,560,011,961.28/139,363.07
  6. Step 6: Final answer
    x = 104,475.40

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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.