Home / 99,356.61-137,115.63-56,923.34

Finding the Fourth Proportional to 99,356.61, 137,115.63 and 56,923.34

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Solution

The fourth proportional to 99,356.61, 137,115.63 and 56,923.34 is: 78,556.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,356.61 : 137,115.63 = 56,923.34 : x
  2. Step 2: Convert to fraction form
    99,356.61/137,115.63 = 56,923.34/x
  3. Step 3: Cross multiply
    99,356.61x = 137,115.63 × 56,923.34
  4. Step 4: Simplify right side
    99,356.61x = 7,805,078,940.23
  5. Step 5: Solve for x
    x = 7,805,078,940.23/99,356.61
  6. Step 6: Final answer
    x = 78,556.21

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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.