Home / 117,685.85-162,443.63-75,244.55

Finding the Fourth Proportional to 117,685.85, 162,443.63 and 75,244.55

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Solution

The fourth proportional to 117,685.85, 162,443.63 and 75,244.55 is: 103,861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,685.85 : 162,443.63 = 75,244.55 : x
  2. Step 2: Convert to fraction form
    117,685.85/162,443.63 = 75,244.55/x
  3. Step 3: Cross multiply
    117,685.85x = 162,443.63 × 75,244.55
  4. Step 4: Simplify right side
    117,685.85x = 12,222,997,839.72
  5. Step 5: Solve for x
    x = 12,222,997,839.72/117,685.85
  6. Step 6: Final answer
    x = 103,861.24

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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.