Home / 147,215.30-220,826.55-53,721.02

Finding the Fourth Proportional to 147,215.30, 220,826.55 and 53,721.02

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Solution

The fourth proportional to 147,215.30, 220,826.55 and 53,721.02 is: 80,582.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,215.30 : 220,826.55 = 53,721.02 : x
  2. Step 2: Convert to fraction form
    147,215.30/220,826.55 = 53,721.02/x
  3. Step 3: Cross multiply
    147,215.30x = 220,826.55 × 53,721.02
  4. Step 4: Simplify right side
    147,215.30x = 11,863,027,509.08
  5. Step 5: Solve for x
    x = 11,863,027,509.08/147,215.30
  6. Step 6: Final answer
    x = 80,582.84

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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.