Home / 107,699.16-148,698-67,429.20

Finding the Fourth Proportional to 107,699.16, 148,698 and 67,429.20

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Solution

The fourth proportional to 107,699.16, 148,698 and 67,429.20 is: 93,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,699.16 : 148,698 = 67,429.20 : x
  2. Step 2: Convert to fraction form
    107,699.16/148,698 = 67,429.20/x
  3. Step 3: Cross multiply
    107,699.16x = 148,698 × 67,429.20
  4. Step 4: Simplify right side
    107,699.16x = 10,026,587,181.60
  5. Step 5: Solve for x
    x = 10,026,587,181.60/107,699.16
  6. Step 6: Final answer
    x = 93,098.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.