Home / 138,816.08-191,566.25-75,153.86

Finding the Fourth Proportional to 138,816.08, 191,566.25 and 75,153.86

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Solution

The fourth proportional to 138,816.08, 191,566.25 and 75,153.86 is: 103,712.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,816.08 : 191,566.25 = 75,153.86 : x
  2. Step 2: Convert to fraction form
    138,816.08/191,566.25 = 75,153.86/x
  3. Step 3: Cross multiply
    138,816.08x = 191,566.25 × 75,153.86
  4. Step 4: Simplify right side
    138,816.08x = 14,396,943,133.23
  5. Step 5: Solve for x
    x = 14,396,943,133.23/138,816.08
  6. Step 6: Final answer
    x = 103,712.36

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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.