Home / 147,455.40-221,184.33-91,458.48

Finding the Fourth Proportional to 147,455.40, 221,184.33 and 91,458.48

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Solution

The fourth proportional to 147,455.40, 221,184.33 and 91,458.48 is: 137,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,455.40 : 221,184.33 = 91,458.48 : x
  2. Step 2: Convert to fraction form
    147,455.40/221,184.33 = 91,458.48/x
  3. Step 3: Cross multiply
    147,455.40x = 221,184.33 × 91,458.48
  4. Step 4: Simplify right side
    147,455.40x = 20,229,182,621.62
  5. Step 5: Solve for x
    x = 20,229,182,621.62/147,455.40
  6. Step 6: Final answer
    x = 137,188.48

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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.