Home / 99,208.32-136,908.48-53,887.20

Finding the Fourth Proportional to 99,208.32, 136,908.48 and 53,887.20

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Solution

The fourth proportional to 99,208.32, 136,908.48 and 53,887.20 is: 74,364.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,208.32 : 136,908.48 = 53,887.20 : x
  2. Step 2: Convert to fraction form
    99,208.32/136,908.48 = 53,887.20/x
  3. Step 3: Cross multiply
    99,208.32x = 136,908.48 × 53,887.20
  4. Step 4: Simplify right side
    99,208.32x = 7,377,614,643.46
  5. Step 5: Solve for x
    x = 7,377,614,643.46/99,208.32
  6. Step 6: Final answer
    x = 74,364.88

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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.