Home / 138,570.90-207,337.35-98,682.10

Finding the Fourth Proportional to 138,570.90, 207,337.35 and 98,682.10

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Solution

The fourth proportional to 138,570.90, 207,337.35 and 98,682.10 is: 147,653.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,570.90 : 207,337.35 = 98,682.10 : x
  2. Step 2: Convert to fraction form
    138,570.90/207,337.35 = 98,682.10/x
  3. Step 3: Cross multiply
    138,570.90x = 207,337.35 × 98,682.10
  4. Step 4: Simplify right side
    138,570.90x = 20,460,485,106.44
  5. Step 5: Solve for x
    x = 20,460,485,106.44/138,570.90
  6. Step 6: Final answer
    x = 147,653.55

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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.