Home / 138,888.19-191,666.01-75,226

Finding the Fourth Proportional to 138,888.19, 191,666.01 and 75,226

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Solution

The fourth proportional to 138,888.19, 191,666.01 and 75,226 is: 103,812.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,888.19 : 191,666.01 = 75,226 : x
  2. Step 2: Convert to fraction form
    138,888.19/191,666.01 = 75,226/x
  3. Step 3: Cross multiply
    138,888.19x = 191,666.01 × 75,226
  4. Step 4: Simplify right side
    138,888.19x = 14,418,267,268.26
  5. Step 5: Solve for x
    x = 14,418,267,268.26/138,888.19
  6. Step 6: Final answer
    x = 103,812.05

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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.