Home / 102,169,456.89-140,944,812.69-66,871,721.79

Finding the Fourth Proportional to 102,169,456.89, 140,944,812.69 and 66,871,721.79

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Solution

The fourth proportional to 102,169,456.89, 140,944,812.69 and 66,871,721.79 is: 92,250,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,169,456.89 : 140,944,812.69 = 66,871,721.79 : x
  2. Step 2: Convert to fraction form
    102,169,456.89/140,944,812.69 = 66,871,721.79/x
  3. Step 3: Cross multiply
    102,169,456.89x = 140,944,812.69 × 66,871,721.79
  4. Step 4: Simplify right side
    102,169,456.89x = 9,425,222,301,949,342
  5. Step 5: Solve for x
    x = 9,425,222,301,949,342/102,169,456.89
  6. Step 6: Final answer
    x = 92,250,879.95

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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.