Home / 102,422.88-153,681.84-43,272.36

Finding the Fourth Proportional to 102,422.88, 153,681.84 and 43,272.36

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Solution

The fourth proportional to 102,422.88, 153,681.84 and 43,272.36 is: 64,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,422.88 : 153,681.84 = 43,272.36 : x
  2. Step 2: Convert to fraction form
    102,422.88/153,681.84 = 43,272.36/x
  3. Step 3: Cross multiply
    102,422.88x = 153,681.84 × 43,272.36
  4. Step 4: Simplify right side
    102,422.88x = 6,650,175,905.94
  5. Step 5: Solve for x
    x = 6,650,175,905.94/102,422.88
  6. Step 6: Final answer
    x = 64,928.62

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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.