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Finding the Fourth Proportional to 101,476.88, 140,094.40 and 61,200.88

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Solution

The fourth proportional to 101,476.88, 140,094.40 and 61,200.88 is: 84,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,476.88 : 140,094.40 = 61,200.88 : x
  2. Step 2: Convert to fraction form
    101,476.88/140,094.40 = 61,200.88/x
  3. Step 3: Cross multiply
    101,476.88x = 140,094.40 × 61,200.88
  4. Step 4: Simplify right side
    101,476.88x = 8,573,900,563.07
  5. Step 5: Solve for x
    x = 8,573,900,563.07/101,476.88
  6. Step 6: Final answer
    x = 84,491.17

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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.