Home / 104,939.71-157,432.95-38,378.36

Finding the Fourth Proportional to 104,939.71, 157,432.95 and 38,378.36

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Solution

The fourth proportional to 104,939.71, 157,432.95 and 38,378.36 is: 57,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,939.71 : 157,432.95 = 38,378.36 : x
  2. Step 2: Convert to fraction form
    104,939.71/157,432.95 = 38,378.36/x
  3. Step 3: Cross multiply
    104,939.71x = 157,432.95 × 38,378.36
  4. Step 4: Simplify right side
    104,939.71x = 6,042,018,824.54
  5. Step 5: Solve for x
    x = 6,042,018,824.54/104,939.71
  6. Step 6: Final answer
    x = 57,576.10

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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.