Home / 98,266.74-147,374.59-28,129.65

Finding the Fourth Proportional to 98,266.74, 147,374.59 and 28,129.65

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Solution

The fourth proportional to 98,266.74, 147,374.59 and 28,129.65 is: 42,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,266.74 : 147,374.59 = 28,129.65 : x
  2. Step 2: Convert to fraction form
    98,266.74/147,374.59 = 28,129.65/x
  3. Step 3: Cross multiply
    98,266.74x = 147,374.59 × 28,129.65
  4. Step 4: Simplify right side
    98,266.74x = 4,145,595,635.59
  5. Step 5: Solve for x
    x = 4,145,595,635.59/98,266.74
  6. Step 6: Final answer
    x = 42,187.17

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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.