Home / 99,908.14-149,133.36-87,296.66

Finding the Fourth Proportional to 99,908.14, 149,133.36 and 87,296.66

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Solution

The fourth proportional to 99,908.14, 149,133.36 and 87,296.66 is: 130,308.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,908.14 : 149,133.36 = 87,296.66 : x
  2. Step 2: Convert to fraction form
    99,908.14/149,133.36 = 87,296.66/x
  3. Step 3: Cross multiply
    99,908.14x = 149,133.36 × 87,296.66
  4. Step 4: Simplify right side
    99,908.14x = 13,018,844,222.58
  5. Step 5: Solve for x
    x = 13,018,844,222.58/99,908.14
  6. Step 6: Final answer
    x = 130,308.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.