Home / 176,542.64-243,623.72-100,068.78

Finding the Fourth Proportional to 176,542.64, 243,623.72 and 100,068.78

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Solution

The fourth proportional to 176,542.64, 243,623.72 and 100,068.78 is: 138,092.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,542.64 : 243,623.72 = 100,068.78 : x
  2. Step 2: Convert to fraction form
    176,542.64/243,623.72 = 100,068.78/x
  3. Step 3: Cross multiply
    176,542.64x = 243,623.72 × 100,068.78
  4. Step 4: Simplify right side
    176,542.64x = 24,379,127,939.12
  5. Step 5: Solve for x
    x = 24,379,127,939.12/176,542.64
  6. Step 6: Final answer
    x = 138,092.01

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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.