Home / 99,501.40-149,033.40-40,306.60

Finding the Fourth Proportional to 99,501.40, 149,033.40 and 40,306.60

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Solution

The fourth proportional to 99,501.40, 149,033.40 and 40,306.60 is: 60,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,501.40 : 149,033.40 = 40,306.60 : x
  2. Step 2: Convert to fraction form
    99,501.40/149,033.40 = 40,306.60/x
  3. Step 3: Cross multiply
    99,501.40x = 149,033.40 × 40,306.60
  4. Step 4: Simplify right side
    99,501.40x = 6,007,029,640.44
  5. Step 5: Solve for x
    x = 6,007,029,640.44/99,501.40
  6. Step 6: Final answer
    x = 60,371.31

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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.