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Finding the Fourth Proportional to 163,442.62, 225,572.88 and 91,840.24

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Solution

The fourth proportional to 163,442.62, 225,572.88 and 91,840.24 is: 126,751.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,442.62 : 225,572.88 = 91,840.24 : x
  2. Step 2: Convert to fraction form
    163,442.62/225,572.88 = 91,840.24/x
  3. Step 3: Cross multiply
    163,442.62x = 225,572.88 × 91,840.24
  4. Step 4: Simplify right side
    163,442.62x = 20,716,667,436.69
  5. Step 5: Solve for x
    x = 20,716,667,436.69/163,442.62
  6. Step 6: Final answer
    x = 126,751.93

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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.