Home / 109,354.57-163,432.68-79,834.57

Finding the Fourth Proportional to 109,354.57, 163,432.68 and 79,834.57

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Solution

The fourth proportional to 109,354.57, 163,432.68 and 79,834.57 is: 119,314.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,354.57 : 163,432.68 = 79,834.57 : x
  2. Step 2: Convert to fraction form
    109,354.57/163,432.68 = 79,834.57/x
  3. Step 3: Cross multiply
    109,354.57x = 163,432.68 × 79,834.57
  4. Step 4: Simplify right side
    109,354.57x = 13,047,577,332.57
  5. Step 5: Solve for x
    x = 13,047,577,332.57/109,354.57
  6. Step 6: Final answer
    x = 119,314.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.