Home / 137,217.24-205,497.27-87,140.61

Finding the Fourth Proportional to 137,217.24, 205,497.27 and 87,140.61

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Solution

The fourth proportional to 137,217.24, 205,497.27 and 87,140.61 is: 130,502.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,217.24 : 205,497.27 = 87,140.61 : x
  2. Step 2: Convert to fraction form
    137,217.24/205,497.27 = 87,140.61/x
  3. Step 3: Cross multiply
    137,217.24x = 205,497.27 × 87,140.61
  4. Step 4: Simplify right side
    137,217.24x = 17,907,157,461.13
  5. Step 5: Solve for x
    x = 17,907,157,461.13/137,217.24
  6. Step 6: Final answer
    x = 130,502.24

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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.