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Finding the Fourth Proportional to 158,676.96, 218,972.40 and 91,607.52

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Solution

The fourth proportional to 158,676.96, 218,972.40 and 91,607.52 is: 126,417.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,676.96 : 218,972.40 = 91,607.52 : x
  2. Step 2: Convert to fraction form
    158,676.96/218,972.40 = 91,607.52/x
  3. Step 3: Cross multiply
    158,676.96x = 218,972.40 × 91,607.52
  4. Step 4: Simplify right side
    158,676.96x = 20,059,518,512.45
  5. Step 5: Solve for x
    x = 20,059,518,512.45/158,676.96
  6. Step 6: Final answer
    x = 126,417.34

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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.