Home / 131,204.81-181,084.51-99,318.35

Finding the Fourth Proportional to 131,204.81, 181,084.51 and 99,318.35

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Solution

The fourth proportional to 131,204.81, 181,084.51 and 99,318.35 is: 137,075.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,204.81 : 181,084.51 = 99,318.35 : x
  2. Step 2: Convert to fraction form
    131,204.81/181,084.51 = 99,318.35/x
  3. Step 3: Cross multiply
    131,204.81x = 181,084.51 × 99,318.35
  4. Step 4: Simplify right side
    131,204.81x = 17,985,015,320.62
  5. Step 5: Solve for x
    x = 17,985,015,320.62/131,204.81
  6. Step 6: Final answer
    x = 137,075.88

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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.