Home / 152,012.43-209,764.08-87,459.48

Finding the Fourth Proportional to 152,012.43, 209,764.08 and 87,459.48

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Solution

The fourth proportional to 152,012.43, 209,764.08 and 87,459.48 is: 120,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,012.43 : 209,764.08 = 87,459.48 : x
  2. Step 2: Convert to fraction form
    152,012.43/209,764.08 = 87,459.48/x
  3. Step 3: Cross multiply
    152,012.43x = 209,764.08 × 87,459.48
  4. Step 4: Simplify right side
    152,012.43x = 18,345,857,359.48
  5. Step 5: Solve for x
    x = 18,345,857,359.48/152,012.43
  6. Step 6: Final answer
    x = 120,686.56

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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.