Home / 147,619.86-221,464.94-47,780.07

Finding the Fourth Proportional to 147,619.86, 221,464.94 and 47,780.07

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Solution

The fourth proportional to 147,619.86, 221,464.94 and 47,780.07 is: 71,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,619.86 : 221,464.94 = 47,780.07 : x
  2. Step 2: Convert to fraction form
    147,619.86/221,464.94 = 47,780.07/x
  3. Step 3: Cross multiply
    147,619.86x = 221,464.94 × 47,780.07
  4. Step 4: Simplify right side
    147,619.86x = 10,581,609,266.35
  5. Step 5: Solve for x
    x = 10,581,609,266.35/147,619.86
  6. Step 6: Final answer
    x = 71,681.48

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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.