Home / 98,569.56-148,519.37-81,423.32

Finding the Fourth Proportional to 98,569.56, 148,519.37 and 81,423.32

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Solution

The fourth proportional to 98,569.56, 148,519.37 and 81,423.32 is: 122,684.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,569.56 : 148,519.37 = 81,423.32 : x
  2. Step 2: Convert to fraction form
    98,569.56/148,519.37 = 81,423.32/x
  3. Step 3: Cross multiply
    98,569.56x = 148,519.37 × 81,423.32
  4. Step 4: Simplify right side
    98,569.56x = 12,092,940,189.71
  5. Step 5: Solve for x
    x = 12,092,940,189.71/98,569.56
  6. Step 6: Final answer
    x = 122,684.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.