Home / 98,519.15-135,848.91-66,632.69

Finding the Fourth Proportional to 98,519.15, 135,848.91 and 66,632.69

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Solution

The fourth proportional to 98,519.15, 135,848.91 and 66,632.69 is: 91,880.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,519.15 : 135,848.91 = 66,632.69 : x
  2. Step 2: Convert to fraction form
    98,519.15/135,848.91 = 66,632.69/x
  3. Step 3: Cross multiply
    98,519.15x = 135,848.91 × 66,632.69
  4. Step 4: Simplify right side
    98,519.15x = 9,051,977,973.70
  5. Step 5: Solve for x
    x = 9,051,977,973.70/98,519.15
  6. Step 6: Final answer
    x = 91,880.39

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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.