Home / 133,177.28-183,790-76,588.64

Finding the Fourth Proportional to 133,177.28, 183,790 and 76,588.64

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Solution

The fourth proportional to 133,177.28, 183,790 and 76,588.64 is: 105,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,177.28 : 183,790 = 76,588.64 : x
  2. Step 2: Convert to fraction form
    133,177.28/183,790 = 76,588.64/x
  3. Step 3: Cross multiply
    133,177.28x = 183,790 × 76,588.64
  4. Step 4: Simplify right side
    133,177.28x = 14,076,226,145.60
  5. Step 5: Solve for x
    x = 14,076,226,145.60/133,177.28
  6. Step 6: Final answer
    x = 105,695.40

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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.