Home / 102,160.07-140,901.01-66,361.61

Finding the Fourth Proportional to 102,160.07, 140,901.01 and 66,361.61

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Solution

The fourth proportional to 102,160.07, 140,901.01 and 66,361.61 is: 91,527.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,160.07 : 140,901.01 = 66,361.61 : x
  2. Step 2: Convert to fraction form
    102,160.07/140,901.01 = 66,361.61/x
  3. Step 3: Cross multiply
    102,160.07x = 140,901.01 × 66,361.61
  4. Step 4: Simplify right side
    102,160.07x = 9,350,417,874.23
  5. Step 5: Solve for x
    x = 9,350,417,874.23/102,160.07
  6. Step 6: Final answer
    x = 91,527.13

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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.