Home / 131,719.02-181,760.70-77,994.96

Finding the Fourth Proportional to 131,719.02, 181,760.70 and 77,994.96

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Solution

The fourth proportional to 131,719.02, 181,760.70 and 77,994.96 is: 107,626.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,719.02 : 181,760.70 = 77,994.96 : x
  2. Step 2: Convert to fraction form
    131,719.02/181,760.70 = 77,994.96/x
  3. Step 3: Cross multiply
    131,719.02x = 181,760.70 × 77,994.96
  4. Step 4: Simplify right side
    131,719.02x = 14,176,418,526.07
  5. Step 5: Solve for x
    x = 14,176,418,526.07/131,719.02
  6. Step 6: Final answer
    x = 107,626.21

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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.