Home / 120,040.76-180,100.02-57,703.16

Finding the Fourth Proportional to 120,040.76, 180,100.02 and 57,703.16

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Solution

The fourth proportional to 120,040.76, 180,100.02 and 57,703.16 is: 86,573.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,040.76 : 180,100.02 = 57,703.16 : x
  2. Step 2: Convert to fraction form
    120,040.76/180,100.02 = 57,703.16/x
  3. Step 3: Cross multiply
    120,040.76x = 180,100.02 × 57,703.16
  4. Step 4: Simplify right side
    120,040.76x = 10,392,340,270.06
  5. Step 5: Solve for x
    x = 10,392,340,270.06/120,040.76
  6. Step 6: Final answer
    x = 86,573.43

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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.