Home / 138,924.16-191,715.31-75,261.94

Finding the Fourth Proportional to 138,924.16, 191,715.31 and 75,261.94

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Solution

The fourth proportional to 138,924.16, 191,715.31 and 75,261.94 is: 103,861.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,924.16 : 191,715.31 = 75,261.94 : x
  2. Step 2: Convert to fraction form
    138,924.16/191,715.31 = 75,261.94/x
  3. Step 3: Cross multiply
    138,924.16x = 191,715.31 × 75,261.94
  4. Step 4: Simplify right side
    138,924.16x = 14,428,866,158.30
  5. Step 5: Solve for x
    x = 14,428,866,158.30/138,924.16
  6. Step 6: Final answer
    x = 103,861.46

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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.