Home / 137,837.16-190,160.98-79,655.52

Finding the Fourth Proportional to 137,837.16, 190,160.98 and 79,655.52

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Solution

The fourth proportional to 137,837.16, 190,160.98 and 79,655.52 is: 109,893.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,837.16 : 190,160.98 = 79,655.52 : x
  2. Step 2: Convert to fraction form
    137,837.16/190,160.98 = 79,655.52/x
  3. Step 3: Cross multiply
    137,837.16x = 190,160.98 × 79,655.52
  4. Step 4: Simplify right side
    137,837.16x = 15,147,371,745.61
  5. Step 5: Solve for x
    x = 15,147,371,745.61/137,837.16
  6. Step 6: Final answer
    x = 109,893.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.