Home / 220,537.62-330,685.47-102,143.70

Finding the Fourth Proportional to 220,537.62, 330,685.47 and 102,143.70

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Solution

The fourth proportional to 220,537.62, 330,685.47 and 102,143.70 is: 153,159.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,537.62 : 330,685.47 = 102,143.70 : x
  2. Step 2: Convert to fraction form
    220,537.62/330,685.47 = 102,143.70/x
  3. Step 3: Cross multiply
    220,537.62x = 330,685.47 × 102,143.70
  4. Step 4: Simplify right side
    220,537.62x = 33,777,437,442.04
  5. Step 5: Solve for x
    x = 33,777,437,442.04/220,537.62
  6. Step 6: Final answer
    x = 153,159.53

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1.5x scale

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.