Home / 75,302.70-112,954.05-74,136.30

Finding the Fourth Proportional to 75,302.70, 112,954.05 and 74,136.30

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Solution

The fourth proportional to 75,302.70, 112,954.05 and 74,136.30 is: 111,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,302.70 : 112,954.05 = 74,136.30 : x
  2. Step 2: Convert to fraction form
    75,302.70/112,954.05 = 74,136.30/x
  3. Step 3: Cross multiply
    75,302.70x = 112,954.05 × 74,136.30
  4. Step 4: Simplify right side
    75,302.70x = 8,373,995,337.02
  5. Step 5: Solve for x
    x = 8,373,995,337.02/75,302.70
  6. Step 6: Final answer
    x = 111,204.45

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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.