Home / 98,210.13-147,315.19-28,089.44

Finding the Fourth Proportional to 98,210.13, 147,315.19 and 28,089.44

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Solution

The fourth proportional to 98,210.13, 147,315.19 and 28,089.44 is: 42,134.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,210.13 : 147,315.19 = 28,089.44 : x
  2. Step 2: Convert to fraction form
    98,210.13/147,315.19 = 28,089.44/x
  3. Step 3: Cross multiply
    98,210.13x = 147,315.19 × 28,089.44
  4. Step 4: Simplify right side
    98,210.13x = 4,138,001,190.59
  5. Step 5: Solve for x
    x = 4,138,001,190.59/98,210.13
  6. Step 6: Final answer
    x = 42,134.16

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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.