Home / 131,530.02-181,512.77-71,101.86

Finding the Fourth Proportional to 131,530.02, 181,512.77 and 71,101.86

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Solution

The fourth proportional to 131,530.02, 181,512.77 and 71,101.86 is: 98,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,530.02 : 181,512.77 = 71,101.86 : x
  2. Step 2: Convert to fraction form
    131,530.02/181,512.77 = 71,101.86/x
  3. Step 3: Cross multiply
    131,530.02x = 181,512.77 × 71,101.86
  4. Step 4: Simplify right side
    131,530.02x = 12,905,895,205.24
  5. Step 5: Solve for x
    x = 12,905,895,205.24/131,530.02
  6. Step 6: Final answer
    x = 98,121.29

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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.