Home / 99,975.34-137,961.78-59,165.92

Finding the Fourth Proportional to 99,975.34, 137,961.78 and 59,165.92

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Solution

The fourth proportional to 99,975.34, 137,961.78 and 59,165.92 is: 81,646.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,975.34 : 137,961.78 = 59,165.92 : x
  2. Step 2: Convert to fraction form
    99,975.34/137,961.78 = 59,165.92/x
  3. Step 3: Cross multiply
    99,975.34x = 137,961.78 × 59,165.92
  4. Step 4: Simplify right side
    99,975.34x = 8,162,635,638.54
  5. Step 5: Solve for x
    x = 8,162,635,638.54/99,975.34
  6. Step 6: Final answer
    x = 81,646.49

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1.5x scale

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.