Home / 135,275.52-186,646.66-87,471.36

Finding the Fourth Proportional to 135,275.52, 186,646.66 and 87,471.36

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Solution

The fourth proportional to 135,275.52, 186,646.66 and 87,471.36 is: 120,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,275.52 : 186,646.66 = 87,471.36 : x
  2. Step 2: Convert to fraction form
    135,275.52/186,646.66 = 87,471.36/x
  3. Step 3: Cross multiply
    135,275.52x = 186,646.66 × 87,471.36
  4. Step 4: Simplify right side
    135,275.52x = 16,326,237,189.66
  5. Step 5: Solve for x
    x = 16,326,237,189.66/135,275.52
  6. Step 6: Final answer
    x = 120,688.78

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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.