Home / 125,243.76-187,869-31,756.80

Finding the Fourth Proportional to 125,243.76, 187,869 and 31,756.80

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Solution

The fourth proportional to 125,243.76, 187,869 and 31,756.80 is: 47,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,243.76 : 187,869 = 31,756.80 : x
  2. Step 2: Convert to fraction form
    125,243.76/187,869 = 31,756.80/x
  3. Step 3: Cross multiply
    125,243.76x = 187,869 × 31,756.80
  4. Step 4: Simplify right side
    125,243.76x = 5,966,118,259.20
  5. Step 5: Solve for x
    x = 5,966,118,259.20/125,243.76
  6. Step 6: Final answer
    x = 47,636.05

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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.