Home / 159,742.39-220,437.08-91,711.48

Finding the Fourth Proportional to 159,742.39, 220,437.08 and 91,711.48

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Solution

The fourth proportional to 159,742.39, 220,437.08 and 91,711.48 is: 126,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,742.39 : 220,437.08 = 91,711.48 : x
  2. Step 2: Convert to fraction form
    159,742.39/220,437.08 = 91,711.48/x
  3. Step 3: Cross multiply
    159,742.39x = 220,437.08 × 91,711.48
  4. Step 4: Simplify right side
    159,742.39x = 20,216,609,292.94
  5. Step 5: Solve for x
    x = 20,216,609,292.94/159,742.39
  6. Step 6: Final answer
    x = 126,557.57

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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.