Home / 104,823.80-157,062.90-87,198.20

Finding the Fourth Proportional to 104,823.80, 157,062.90 and 87,198.20

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Solution

The fourth proportional to 104,823.80, 157,062.90 and 87,198.20 is: 130,653.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,823.80 : 157,062.90 = 87,198.20 : x
  2. Step 2: Convert to fraction form
    104,823.80/157,062.90 = 87,198.20/x
  3. Step 3: Cross multiply
    104,823.80x = 157,062.90 × 87,198.20
  4. Step 4: Simplify right side
    104,823.80x = 13,695,602,166.78
  5. Step 5: Solve for x
    x = 13,695,602,166.78/104,823.80
  6. Step 6: Final answer
    x = 130,653.56

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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.