Home / 138,727.16-207,924.38-79,603.64

Finding the Fourth Proportional to 138,727.16, 207,924.38 and 79,603.64

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Solution

The fourth proportional to 138,727.16, 207,924.38 and 79,603.64 is: 119,310.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,727.16 : 207,924.38 = 79,603.64 : x
  2. Step 2: Convert to fraction form
    138,727.16/207,924.38 = 79,603.64/x
  3. Step 3: Cross multiply
    138,727.16x = 207,924.38 × 79,603.64
  4. Step 4: Simplify right side
    138,727.16x = 16,551,537,492.74
  5. Step 5: Solve for x
    x = 16,551,537,492.74/138,727.16
  6. Step 6: Final answer
    x = 119,310.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.