Home / 147,220.38-220,784.09-47,358.31

Finding the Fourth Proportional to 147,220.38, 220,784.09 and 47,358.31

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Solution

The fourth proportional to 147,220.38, 220,784.09 and 47,358.31 is: 71,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,220.38 : 220,784.09 = 47,358.31 : x
  2. Step 2: Convert to fraction form
    147,220.38/220,784.09 = 47,358.31/x
  3. Step 3: Cross multiply
    147,220.38x = 220,784.09 × 47,358.31
  4. Step 4: Simplify right side
    147,220.38x = 10,455,961,377.29
  5. Step 5: Solve for x
    x = 10,455,961,377.29/147,220.38
  6. Step 6: Final answer
    x = 71,022.51

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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.