Home / 267,514.05-401,289.30-85,130.40

Finding the Fourth Proportional to 267,514.05, 401,289.30 and 85,130.40

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Solution

The fourth proportional to 267,514.05, 401,289.30 and 85,130.40 is: 127,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,514.05 : 401,289.30 = 85,130.40 : x
  2. Step 2: Convert to fraction form
    267,514.05/401,289.30 = 85,130.40/x
  3. Step 3: Cross multiply
    267,514.05x = 401,289.30 × 85,130.40
  4. Step 4: Simplify right side
    267,514.05x = 34,161,918,624.72
  5. Step 5: Solve for x
    x = 34,161,918,624.72/267,514.05
  6. Step 6: Final answer
    x = 127,701.40

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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.