Home / 133,742.90-200,549.55-74,515.70

Finding the Fourth Proportional to 133,742.90, 200,549.55 and 74,515.70

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Solution

The fourth proportional to 133,742.90, 200,549.55 and 74,515.70 is: 111,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,742.90 : 200,549.55 = 74,515.70 : x
  2. Step 2: Convert to fraction form
    133,742.90/200,549.55 = 74,515.70/x
  3. Step 3: Cross multiply
    133,742.90x = 200,549.55 × 74,515.70
  4. Step 4: Simplify right side
    133,742.90x = 14,944,090,102.94
  5. Step 5: Solve for x
    x = 14,944,090,102.94/133,742.90
  6. Step 6: Final answer
    x = 111,737.45

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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.