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Finding the Fourth Proportional to 176,054.72, 242,672.56 and 137,748.20

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Solution

The fourth proportional to 176,054.72, 242,672.56 and 137,748.20 is: 189,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,054.72 : 242,672.56 = 137,748.20 : x
  2. Step 2: Convert to fraction form
    176,054.72/242,672.56 = 137,748.20/x
  3. Step 3: Cross multiply
    176,054.72x = 242,672.56 × 137,748.20
  4. Step 4: Simplify right side
    176,054.72x = 33,427,706,771.66
  5. Step 5: Solve for x
    x = 33,427,706,771.66/176,054.72
  6. Step 6: Final answer
    x = 189,871.12

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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.