Home / 131,506.84-181,476.06-71,887

Finding the Fourth Proportional to 131,506.84, 181,476.06 and 71,887

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Solution

The fourth proportional to 131,506.84, 181,476.06 and 71,887 is: 99,202.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,506.84 : 181,476.06 = 71,887 : x
  2. Step 2: Convert to fraction form
    131,506.84/181,476.06 = 71,887/x
  3. Step 3: Cross multiply
    131,506.84x = 181,476.06 × 71,887
  4. Step 4: Simplify right side
    131,506.84x = 13,045,769,525.22
  5. Step 5: Solve for x
    x = 13,045,769,525.22/131,506.84
  6. Step 6: Final answer
    x = 99,202.21

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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.