Home / 147,385.20-221,023.80-47,571.60

Finding the Fourth Proportional to 147,385.20, 221,023.80 and 47,571.60

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Solution

The fourth proportional to 147,385.20, 221,023.80 and 47,571.60 is: 71,339.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,385.20 : 221,023.80 = 47,571.60 : x
  2. Step 2: Convert to fraction form
    147,385.20/221,023.80 = 47,571.60/x
  3. Step 3: Cross multiply
    147,385.20x = 221,023.80 × 47,571.60
  4. Step 4: Simplify right side
    147,385.20x = 10,514,455,804.08
  5. Step 5: Solve for x
    x = 10,514,455,804.08/147,385.20
  6. Step 6: Final answer
    x = 71,339.97

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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.