Home / 98,140.90-135,435.09-55,700.14

Finding the Fourth Proportional to 98,140.90, 135,435.09 and 55,700.14

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Solution

The fourth proportional to 98,140.90, 135,435.09 and 55,700.14 is: 76,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,140.90 : 135,435.09 = 55,700.14 : x
  2. Step 2: Convert to fraction form
    98,140.90/135,435.09 = 55,700.14/x
  3. Step 3: Cross multiply
    98,140.90x = 135,435.09 × 55,700.14
  4. Step 4: Simplify right side
    98,140.90x = 7,543,753,473.91
  5. Step 5: Solve for x
    x = 7,543,753,473.91/98,140.90
  6. Step 6: Final answer
    x = 76,866.56

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1.5x scale

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.