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Finding the Fourth Proportional to 99,994.28, 149,988.28 and 40,830.52

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Solution

The fourth proportional to 99,994.28, 149,988.28 and 40,830.52 is: 61,244.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,994.28 : 149,988.28 = 40,830.52 : x
  2. Step 2: Convert to fraction form
    99,994.28/149,988.28 = 40,830.52/x
  3. Step 3: Cross multiply
    99,994.28x = 149,988.28 × 40,830.52
  4. Step 4: Simplify right side
    99,994.28x = 6,124,099,466.31
  5. Step 5: Solve for x
    x = 6,124,099,466.31/99,994.28
  6. Step 6: Final answer
    x = 61,244.50

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Similar ratio
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1.5x scale

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.