Home / 102,159.07-140,899.63-66,360.61

Finding the Fourth Proportional to 102,159.07, 140,899.63 and 66,360.61

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Solution

The fourth proportional to 102,159.07, 140,899.63 and 66,360.61 is: 91,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,159.07 : 140,899.63 = 66,360.61 : x
  2. Step 2: Convert to fraction form
    102,159.07/140,899.63 = 66,360.61/x
  3. Step 3: Cross multiply
    102,159.07x = 140,899.63 × 66,360.61
  4. Step 4: Simplify right side
    102,159.07x = 9,350,185,395.57
  5. Step 5: Solve for x
    x = 9,350,185,395.57/102,159.07
  6. Step 6: Final answer
    x = 91,525.75

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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.