Home / 147,654.77-203,778.88-90,332.28

Finding the Fourth Proportional to 147,654.77, 203,778.88 and 90,332.28

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Solution

The fourth proportional to 147,654.77, 203,778.88 and 90,332.28 is: 124,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,654.77 : 203,778.88 = 90,332.28 : x
  2. Step 2: Convert to fraction form
    147,654.77/203,778.88 = 90,332.28/x
  3. Step 3: Cross multiply
    147,654.77x = 203,778.88 × 90,332.28
  4. Step 4: Simplify right side
    147,654.77x = 18,407,810,620.42
  5. Step 5: Solve for x
    x = 18,407,810,620.42/147,654.77
  6. Step 6: Final answer
    x = 124,667.91

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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.