Home / 102,417.98-141,256.69-66,619.43

Finding the Fourth Proportional to 102,417.98, 141,256.69 and 66,619.43

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Solution

The fourth proportional to 102,417.98, 141,256.69 and 66,619.43 is: 91,882.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,417.98 : 141,256.69 = 66,619.43 : x
  2. Step 2: Convert to fraction form
    102,417.98/141,256.69 = 66,619.43/x
  3. Step 3: Cross multiply
    102,417.98x = 141,256.69 × 66,619.43
  4. Step 4: Simplify right side
    102,417.98x = 9,410,439,465.20
  5. Step 5: Solve for x
    x = 9,410,439,465.20/102,417.98
  6. Step 6: Final answer
    x = 91,882.69

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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.