Home / 138,751.20-191,477.27-75,089.01

Finding the Fourth Proportional to 138,751.20, 191,477.27 and 75,089.01

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Solution

The fourth proportional to 138,751.20, 191,477.27 and 75,089.01 is: 103,623.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,751.20 : 191,477.27 = 75,089.01 : x
  2. Step 2: Convert to fraction form
    138,751.20/191,477.27 = 75,089.01/x
  3. Step 3: Cross multiply
    138,751.20x = 191,477.27 × 75,089.01
  4. Step 4: Simplify right side
    138,751.20x = 14,377,837,308.97
  5. Step 5: Solve for x
    x = 14,377,837,308.97/138,751.20
  6. Step 6: Final answer
    x = 103,623.16

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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.