Home / 147,619.29-221,464.09-47,779.50

Finding the Fourth Proportional to 147,619.29, 221,464.09 and 47,779.50

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Solution

The fourth proportional to 147,619.29, 221,464.09 and 47,779.50 is: 71,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,619.29 : 221,464.09 = 47,779.50 : x
  2. Step 2: Convert to fraction form
    147,619.29/221,464.09 = 47,779.50/x
  3. Step 3: Cross multiply
    147,619.29x = 221,464.09 × 47,779.50
  4. Step 4: Simplify right side
    147,619.29x = 10,581,444,378.37
  5. Step 5: Solve for x
    x = 10,581,444,378.37/147,619.29
  6. Step 6: Final answer
    x = 71,680.63

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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.