Home / 139,432.11-192,417.54-75,769.92

Finding the Fourth Proportional to 139,432.11, 192,417.54 and 75,769.92

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Solution

The fourth proportional to 139,432.11, 192,417.54 and 75,769.92 is: 104,563.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,432.11 : 192,417.54 = 75,769.92 : x
  2. Step 2: Convert to fraction form
    139,432.11/192,417.54 = 75,769.92/x
  3. Step 3: Cross multiply
    139,432.11x = 192,417.54 × 75,769.92
  4. Step 4: Simplify right side
    139,432.11x = 14,579,461,612.40
  5. Step 5: Solve for x
    x = 14,579,461,612.40/139,432.11
  6. Step 6: Final answer
    x = 104,563.16

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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.