Home / 103,186.92-142,337.62-64,885.86

Finding the Fourth Proportional to 103,186.92, 142,337.62 and 64,885.86

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Solution

The fourth proportional to 103,186.92, 142,337.62 and 64,885.86 is: 89,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,186.92 : 142,337.62 = 64,885.86 : x
  2. Step 2: Convert to fraction form
    103,186.92/142,337.62 = 64,885.86/x
  3. Step 3: Cross multiply
    103,186.92x = 142,337.62 × 64,885.86
  4. Step 4: Simplify right side
    103,186.92x = 9,235,698,884.05
  5. Step 5: Solve for x
    x = 9,235,698,884.05/103,186.92
  6. Step 6: Final answer
    x = 89,504.55

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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.