Home / 131,178.64-181,010.04-73,810.84

Finding the Fourth Proportional to 131,178.64, 181,010.04 and 73,810.84

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Solution

The fourth proportional to 131,178.64, 181,010.04 and 73,810.84 is: 101,849.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,178.64 : 181,010.04 = 73,810.84 : x
  2. Step 2: Convert to fraction form
    131,178.64/181,010.04 = 73,810.84/x
  3. Step 3: Cross multiply
    131,178.64x = 181,010.04 × 73,810.84
  4. Step 4: Simplify right side
    131,178.64x = 13,360,503,100.83
  5. Step 5: Solve for x
    x = 13,360,503,100.83/131,178.64
  6. Step 6: Final answer
    x = 101,849.68

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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.