Home / 99,177.76-136,864.81-53,855.35

Finding the Fourth Proportional to 99,177.76, 136,864.81 and 53,855.35

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Solution

The fourth proportional to 99,177.76, 136,864.81 and 53,855.35 is: 74,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,177.76 : 136,864.81 = 53,855.35 : x
  2. Step 2: Convert to fraction form
    99,177.76/136,864.81 = 53,855.35/x
  3. Step 3: Cross multiply
    99,177.76x = 136,864.81 × 53,855.35
  4. Step 4: Simplify right side
    99,177.76x = 7,370,902,245.23
  5. Step 5: Solve for x
    x = 7,370,902,245.23/99,177.76
  6. Step 6: Final answer
    x = 74,320.11

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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.