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Finding the Fourth Proportional to 131,602.16, 181,610.16 and 75,012.86

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Solution

The fourth proportional to 131,602.16, 181,610.16 and 75,012.86 is: 103,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,602.16 : 181,610.16 = 75,012.86 : x
  2. Step 2: Convert to fraction form
    131,602.16/181,610.16 = 75,012.86/x
  3. Step 3: Cross multiply
    131,602.16x = 181,610.16 × 75,012.86
  4. Step 4: Simplify right side
    131,602.16x = 13,623,097,506.66
  5. Step 5: Solve for x
    x = 13,623,097,506.66/131,602.16
  6. Step 6: Final answer
    x = 103,517.28

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1.5x scale

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.