Home / 124,623.73-186,979.33-77,821.93

Finding the Fourth Proportional to 124,623.73, 186,979.33 and 77,821.93

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Solution

The fourth proportional to 124,623.73, 186,979.33 and 77,821.93 is: 116,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,623.73 : 186,979.33 = 77,821.93 : x
  2. Step 2: Convert to fraction form
    124,623.73/186,979.33 = 77,821.93/x
  3. Step 3: Cross multiply
    124,623.73x = 186,979.33 × 77,821.93
  4. Step 4: Simplify right side
    124,623.73x = 14,551,092,330.71
  5. Step 5: Solve for x
    x = 14,551,092,330.71/124,623.73
  6. Step 6: Final answer
    x = 116,760.21

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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.