Home / 148,266.18-204,609-80,284.68

Finding the Fourth Proportional to 148,266.18, 204,609 and 80,284.68

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Solution

The fourth proportional to 148,266.18, 204,609 and 80,284.68 is: 110,793.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,266.18 : 204,609 = 80,284.68 : x
  2. Step 2: Convert to fraction form
    148,266.18/204,609 = 80,284.68/x
  3. Step 3: Cross multiply
    148,266.18x = 204,609 × 80,284.68
  4. Step 4: Simplify right side
    148,266.18x = 16,426,968,090.12
  5. Step 5: Solve for x
    x = 16,426,968,090.12/148,266.18
  6. Step 6: Final answer
    x = 110,793.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.