Home / 147,054.80-220,582.20-99,815.60

Finding the Fourth Proportional to 147,054.80, 220,582.20 and 99,815.60

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Solution

The fourth proportional to 147,054.80, 220,582.20 and 99,815.60 is: 149,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,054.80 : 220,582.20 = 99,815.60 : x
  2. Step 2: Convert to fraction form
    147,054.80/220,582.20 = 99,815.60/x
  3. Step 3: Cross multiply
    147,054.80x = 220,582.20 × 99,815.60
  4. Step 4: Simplify right side
    147,054.80x = 22,017,544,642.32
  5. Step 5: Solve for x
    x = 22,017,544,642.32/147,054.80
  6. Step 6: Final answer
    x = 149,723.40

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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.