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Finding the Fourth Proportional to 146,686.60, 220,029.90 and 100,030.60

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Solution

The fourth proportional to 146,686.60, 220,029.90 and 100,030.60 is: 150,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,686.60 : 220,029.90 = 100,030.60 : x
  2. Step 2: Convert to fraction form
    146,686.60/220,029.90 = 100,030.60/x
  3. Step 3: Cross multiply
    146,686.60x = 220,029.90 × 100,030.60
  4. Step 4: Simplify right side
    146,686.60x = 22,009,722,914.94
  5. Step 5: Solve for x
    x = 22,009,722,914.94/146,686.60
  6. Step 6: Final answer
    x = 150,045.90

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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.