Home / 139,432.16-192,417.18-75,770.48

Finding the Fourth Proportional to 139,432.16, 192,417.18 and 75,770.48

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Solution

The fourth proportional to 139,432.16, 192,417.18 and 75,770.48 is: 104,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,432.16 : 192,417.18 = 75,770.48 : x
  2. Step 2: Convert to fraction form
    139,432.16/192,417.18 = 75,770.48/x
  3. Step 3: Cross multiply
    139,432.16x = 192,417.18 × 75,770.48
  4. Step 4: Simplify right side
    139,432.16x = 14,579,542,088.85
  5. Step 5: Solve for x
    x = 14,579,542,088.85/139,432.16
  6. Step 6: Final answer
    x = 104,563.70

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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.