Home / 103,185.92-142,336.24-64,884.85

Finding the Fourth Proportional to 103,185.92, 142,336.24 and 64,884.85

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Solution

The fourth proportional to 103,185.92, 142,336.24 and 64,884.85 is: 89,503.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,185.92 : 142,336.24 = 64,884.85 : x
  2. Step 2: Convert to fraction form
    103,185.92/142,336.24 = 64,884.85/x
  3. Step 3: Cross multiply
    103,185.92x = 142,336.24 × 64,884.85
  4. Step 4: Simplify right side
    103,185.92x = 9,235,465,581.96
  5. Step 5: Solve for x
    x = 9,235,465,581.96/103,185.92
  6. Step 6: Final answer
    x = 89,503.16

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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.