Home / 98,429.70-147,639.39-28,306.26

Finding the Fourth Proportional to 98,429.70, 147,639.39 and 28,306.26

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Solution

The fourth proportional to 98,429.70, 147,639.39 and 28,306.26 is: 42,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,429.70 : 147,639.39 = 28,306.26 : x
  2. Step 2: Convert to fraction form
    98,429.70/147,639.39 = 28,306.26/x
  3. Step 3: Cross multiply
    98,429.70x = 147,639.39 × 28,306.26
  4. Step 4: Simplify right side
    98,429.70x = 4,179,118,959.58
  5. Step 5: Solve for x
    x = 4,179,118,959.58/98,429.70
  6. Step 6: Final answer
    x = 42,457.91

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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.