Home / 151,070.85-208,461.42-87,396.75

Finding the Fourth Proportional to 151,070.85, 208,461.42 and 87,396.75

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Solution

The fourth proportional to 151,070.85, 208,461.42 and 87,396.75 is: 120,598.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,070.85 : 208,461.42 = 87,396.75 : x
  2. Step 2: Convert to fraction form
    151,070.85/208,461.42 = 87,396.75/x
  3. Step 3: Cross multiply
    151,070.85x = 208,461.42 × 87,396.75
  4. Step 4: Simplify right side
    151,070.85x = 18,218,850,608.39
  5. Step 5: Solve for x
    x = 18,218,850,608.39/151,070.85
  6. Step 6: Final answer
    x = 120,598.05

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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.