Home / 125,271.90-187,901.37-31,778.46

Finding the Fourth Proportional to 125,271.90, 187,901.37 and 31,778.46

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Solution

The fourth proportional to 125,271.90, 187,901.37 and 31,778.46 is: 47,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,271.90 : 187,901.37 = 31,778.46 : x
  2. Step 2: Convert to fraction form
    125,271.90/187,901.37 = 31,778.46/x
  3. Step 3: Cross multiply
    125,271.90x = 187,901.37 × 31,778.46
  4. Step 4: Simplify right side
    125,271.90x = 5,971,216,170.49
  5. Step 5: Solve for x
    x = 5,971,216,170.49/125,271.90
  6. Step 6: Final answer
    x = 47,666.05

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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.