Home / 133,574.40-200,228.55-66,810.78

Finding the Fourth Proportional to 133,574.40, 200,228.55 and 66,810.78

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Solution

The fourth proportional to 133,574.40, 200,228.55 and 66,810.78 is: 100,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,574.40 : 200,228.55 = 66,810.78 : x
  2. Step 2: Convert to fraction form
    133,574.40/200,228.55 = 66,810.78/x
  3. Step 3: Cross multiply
    133,574.40x = 200,228.55 × 66,810.78
  4. Step 4: Simplify right side
    133,574.40x = 13,377,425,603.77
  5. Step 5: Solve for x
    x = 13,377,425,603.77/133,574.40
  6. Step 6: Final answer
    x = 100,149.62

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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.