Home / 101,671.02-140,272.38-61,369.47

Finding the Fourth Proportional to 101,671.02, 140,272.38 and 61,369.47

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Solution

The fourth proportional to 101,671.02, 140,272.38 and 61,369.47 is: 84,669.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,671.02 : 140,272.38 = 61,369.47 : x
  2. Step 2: Convert to fraction form
    101,671.02/140,272.38 = 61,369.47/x
  3. Step 3: Cross multiply
    101,671.02x = 140,272.38 × 61,369.47
  4. Step 4: Simplify right side
    101,671.02x = 8,608,441,616.24
  5. Step 5: Solve for x
    x = 8,608,441,616.24/101,671.02
  6. Step 6: Final answer
    x = 84,669.57

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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.