Home / 147,275.73-220,707.61-79,661.75

Finding the Fourth Proportional to 147,275.73, 220,707.61 and 79,661.75

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Solution

The fourth proportional to 147,275.73, 220,707.61 and 79,661.75 is: 119,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,275.73 : 220,707.61 = 79,661.75 : x
  2. Step 2: Convert to fraction form
    147,275.73/220,707.61 = 79,661.75/x
  3. Step 3: Cross multiply
    147,275.73x = 220,707.61 × 79,661.75
  4. Step 4: Simplify right side
    147,275.73x = 17,581,953,148.23
  5. Step 5: Solve for x
    x = 17,581,953,148.23/147,275.73
  6. Step 6: Final answer
    x = 119,381.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.