Home / 138,798.40-208,058.72-63,972.64

Finding the Fourth Proportional to 138,798.40, 208,058.72 and 63,972.64

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Solution

The fourth proportional to 138,798.40, 208,058.72 and 63,972.64 is: 95,894.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,798.40 : 208,058.72 = 63,972.64 : x
  2. Step 2: Convert to fraction form
    138,798.40/208,058.72 = 63,972.64/x
  3. Step 3: Cross multiply
    138,798.40x = 208,058.72 × 63,972.64
  4. Step 4: Simplify right side
    138,798.40x = 13,310,065,593.42
  5. Step 5: Solve for x
    x = 13,310,065,593.42/138,798.40
  6. Step 6: Final answer
    x = 95,894.95

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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.