Home / 147,619.76-221,464.78-47,779.96

Finding the Fourth Proportional to 147,619.76, 221,464.78 and 47,779.96

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Solution

The fourth proportional to 147,619.76, 221,464.78 and 47,779.96 is: 71,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,619.76 : 221,464.78 = 47,779.96 : x
  2. Step 2: Convert to fraction form
    147,619.76/221,464.78 = 47,779.96/x
  3. Step 3: Cross multiply
    147,619.76x = 221,464.78 × 47,779.96
  4. Step 4: Simplify right side
    147,619.76x = 10,581,578,329.81
  5. Step 5: Solve for x
    x = 10,581,578,329.81/147,619.76
  6. Step 6: Final answer
    x = 71,681.31

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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.