Home / 131,128.86-180,952.17-73,767.20

Finding the Fourth Proportional to 131,128.86, 180,952.17 and 73,767.20

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Solution

The fourth proportional to 131,128.86, 180,952.17 and 73,767.20 is: 101,795.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,128.86 : 180,952.17 = 73,767.20 : x
  2. Step 2: Convert to fraction form
    131,128.86/180,952.17 = 73,767.20/x
  3. Step 3: Cross multiply
    131,128.86x = 180,952.17 × 73,767.20
  4. Step 4: Simplify right side
    131,128.86x = 13,348,334,010.06
  5. Step 5: Solve for x
    x = 13,348,334,010.06/131,128.86
  6. Step 6: Final answer
    x = 101,795.55

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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.