Home / 133,177.40-183,777.78-72,747.17

Finding the Fourth Proportional to 133,177.40, 183,777.78 and 72,747.17

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Solution

The fourth proportional to 133,177.40, 183,777.78 and 72,747.17 is: 100,387.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,177.40 : 183,777.78 = 72,747.17 : x
  2. Step 2: Convert to fraction form
    133,177.40/183,777.78 = 72,747.17/x
  3. Step 3: Cross multiply
    133,177.40x = 183,777.78 × 72,747.17
  4. Step 4: Simplify right side
    133,177.40x = 13,369,313,403.88
  5. Step 5: Solve for x
    x = 13,369,313,403.88/133,177.40
  6. Step 6: Final answer
    x = 100,387.25

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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.