Home / 129,328.61-193,981.38-45,074.44

Finding the Fourth Proportional to 129,328.61, 193,981.38 and 45,074.44

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Solution

The fourth proportional to 129,328.61, 193,981.38 and 45,074.44 is: 67,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,328.61 : 193,981.38 = 45,074.44 : x
  2. Step 2: Convert to fraction form
    129,328.61/193,981.38 = 45,074.44/x
  3. Step 3: Cross multiply
    129,328.61x = 193,981.38 × 45,074.44
  4. Step 4: Simplify right side
    129,328.61x = 8,743,602,073.93
  5. Step 5: Solve for x
    x = 8,743,602,073.93/129,328.61
  6. Step 6: Final answer
    x = 67,607.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.