Home / 125,117.45-187,205.31-87,750.45

Finding the Fourth Proportional to 125,117.45, 187,205.31 and 87,750.45

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Solution

The fourth proportional to 125,117.45, 187,205.31 and 87,750.45 is: 131,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,117.45 : 187,205.31 = 87,750.45 : x
  2. Step 2: Convert to fraction form
    125,117.45/187,205.31 = 87,750.45/x
  3. Step 3: Cross multiply
    125,117.45x = 187,205.31 × 87,750.45
  4. Step 4: Simplify right side
    125,117.45x = 16,427,350,194.89
  5. Step 5: Solve for x
    x = 16,427,350,194.89/125,117.45
  6. Step 6: Final answer
    x = 131,295.44

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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.