Home / 147,746.80-221,620.20-100,507.60

Finding the Fourth Proportional to 147,746.80, 221,620.20 and 100,507.60

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Solution

The fourth proportional to 147,746.80, 221,620.20 and 100,507.60 is: 150,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,746.80 : 221,620.20 = 100,507.60 : x
  2. Step 2: Convert to fraction form
    147,746.80/221,620.20 = 100,507.60/x
  3. Step 3: Cross multiply
    147,746.80x = 221,620.20 × 100,507.60
  4. Step 4: Simplify right side
    147,746.80x = 22,274,514,413.52
  5. Step 5: Solve for x
    x = 22,274,514,413.52/147,746.80
  6. Step 6: Final answer
    x = 150,761.40

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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.