Home / 99,889.20-137,848.64-54,566.87

Finding the Fourth Proportional to 99,889.20, 137,848.64 and 54,566.87

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Solution

The fourth proportional to 99,889.20, 137,848.64 and 54,566.87 is: 75,303.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,889.20 : 137,848.64 = 54,566.87 : x
  2. Step 2: Convert to fraction form
    99,889.20/137,848.64 = 54,566.87/x
  3. Step 3: Cross multiply
    99,889.20x = 137,848.64 × 54,566.87
  4. Step 4: Simplify right side
    99,889.20x = 7,521,967,856.48
  5. Step 5: Solve for x
    x = 7,521,967,856.48/99,889.20
  6. Step 6: Final answer
    x = 75,303.11

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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.