Home / 135,216.15-186,595.56-74,789.34

Finding the Fourth Proportional to 135,216.15, 186,595.56 and 74,789.34

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Solution

The fourth proportional to 135,216.15, 186,595.56 and 74,789.34 is: 103,207.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,216.15 : 186,595.56 = 74,789.34 : x
  2. Step 2: Convert to fraction form
    135,216.15/186,595.56 = 74,789.34/x
  3. Step 3: Cross multiply
    135,216.15x = 186,595.56 × 74,789.34
  4. Step 4: Simplify right side
    135,216.15x = 13,955,358,779.33
  5. Step 5: Solve for x
    x = 13,955,358,779.33/135,216.15
  6. Step 6: Final answer
    x = 103,207.78

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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.