Home / 75,200.90-112,801.35-66,161.30

Finding the Fourth Proportional to 75,200.90, 112,801.35 and 66,161.30

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Solution

The fourth proportional to 75,200.90, 112,801.35 and 66,161.30 is: 99,241.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,200.90 : 112,801.35 = 66,161.30 : x
  2. Step 2: Convert to fraction form
    75,200.90/112,801.35 = 66,161.30/x
  3. Step 3: Cross multiply
    75,200.90x = 112,801.35 × 66,161.30
  4. Step 4: Simplify right side
    75,200.90x = 7,463,083,957.76
  5. Step 5: Solve for x
    x = 7,463,083,957.76/75,200.90
  6. Step 6: Final answer
    x = 99,241.95

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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.