Home / 99,629.70-149,444.55-79,946.70

Finding the Fourth Proportional to 99,629.70, 149,444.55 and 79,946.70

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Solution

The fourth proportional to 99,629.70, 149,444.55 and 79,946.70 is: 119,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,629.70 : 149,444.55 = 79,946.70 : x
  2. Step 2: Convert to fraction form
    99,629.70/149,444.55 = 79,946.70/x
  3. Step 3: Cross multiply
    99,629.70x = 149,444.55 × 79,946.70
  4. Step 4: Simplify right side
    99,629.70x = 11,947,598,605.49
  5. Step 5: Solve for x
    x = 11,947,598,605.49/99,629.70
  6. Step 6: Final answer
    x = 119,920.05

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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.