Home / 175,709.40-263,564.10-87,135.90

Finding the Fourth Proportional to 175,709.40, 263,564.10 and 87,135.90

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Solution

The fourth proportional to 175,709.40, 263,564.10 and 87,135.90 is: 130,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,709.40 : 263,564.10 = 87,135.90 : x
  2. Step 2: Convert to fraction form
    175,709.40/263,564.10 = 87,135.90/x
  3. Step 3: Cross multiply
    175,709.40x = 263,564.10 × 87,135.90
  4. Step 4: Simplify right side
    175,709.40x = 22,965,895,061.19
  5. Step 5: Solve for x
    x = 22,965,895,061.19/175,709.40
  6. Step 6: Final answer
    x = 130,703.85

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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.