Home / 99,639.72-149,466.06-47,099.88

Finding the Fourth Proportional to 99,639.72, 149,466.06 and 47,099.88

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Solution

The fourth proportional to 99,639.72, 149,466.06 and 47,099.88 is: 70,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,639.72 : 149,466.06 = 47,099.88 : x
  2. Step 2: Convert to fraction form
    99,639.72/149,466.06 = 47,099.88/x
  3. Step 3: Cross multiply
    99,639.72x = 149,466.06 × 47,099.88
  4. Step 4: Simplify right side
    99,639.72x = 7,039,833,490.07
  5. Step 5: Solve for x
    x = 7,039,833,490.07/99,639.72
  6. Step 6: Final answer
    x = 70,652.88

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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.