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Finding the Fourth Proportional to 110,770.40, 152,936.28 and 68,391.20

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Solution

The fourth proportional to 110,770.40, 152,936.28 and 68,391.20 is: 94,425.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,770.40 : 152,936.28 = 68,391.20 : x
  2. Step 2: Convert to fraction form
    110,770.40/152,936.28 = 68,391.20/x
  3. Step 3: Cross multiply
    110,770.40x = 152,936.28 × 68,391.20
  4. Step 4: Simplify right side
    110,770.40x = 10,459,495,712.74
  5. Step 5: Solve for x
    x = 10,459,495,712.74/110,770.40
  6. Step 6: Final answer
    x = 94,425.01

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1.5x scale

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.