Home / 135,337.08-186,765.54-74,911.89

Finding the Fourth Proportional to 135,337.08, 186,765.54 and 74,911.89

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Solution

The fourth proportional to 135,337.08, 186,765.54 and 74,911.89 is: 103,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,337.08 : 186,765.54 = 74,911.89 : x
  2. Step 2: Convert to fraction form
    135,337.08/186,765.54 = 74,911.89/x
  3. Step 3: Cross multiply
    135,337.08x = 186,765.54 × 74,911.89
  4. Step 4: Simplify right side
    135,337.08x = 13,990,959,588.27
  5. Step 5: Solve for x
    x = 13,990,959,588.27/135,337.08
  6. Step 6: Final answer
    x = 103,378.61

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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.