Home / 124,403.31-186,331.44-102,811.32

Finding the Fourth Proportional to 124,403.31, 186,331.44 and 102,811.32

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Solution

The fourth proportional to 124,403.31, 186,331.44 and 102,811.32 is: 153,990.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,403.31 : 186,331.44 = 102,811.32 : x
  2. Step 2: Convert to fraction form
    124,403.31/186,331.44 = 102,811.32/x
  3. Step 3: Cross multiply
    124,403.31x = 186,331.44 × 102,811.32
  4. Step 4: Simplify right side
    124,403.31x = 19,156,981,303.90
  5. Step 5: Solve for x
    x = 19,156,981,303.90/124,403.31
  6. Step 6: Final answer
    x = 153,990.93

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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.