Home / 147,619.80-221,464.84-47,780.01

Finding the Fourth Proportional to 147,619.80, 221,464.84 and 47,780.01

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Solution

The fourth proportional to 147,619.80, 221,464.84 and 47,780.01 is: 71,681.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,619.80 : 221,464.84 = 47,780.01 : x
  2. Step 2: Convert to fraction form
    147,619.80/221,464.84 = 47,780.01/x
  3. Step 3: Cross multiply
    147,619.80x = 221,464.84 × 47,780.01
  4. Step 4: Simplify right side
    147,619.80x = 10,581,591,162.52
  5. Step 5: Solve for x
    x = 10,581,591,162.52/147,619.80
  6. Step 6: Final answer
    x = 71,681.38

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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.