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Finding the Fourth Proportional to 158,818.92, 219,170.56 and 87,203.58

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Solution

The fourth proportional to 158,818.92, 219,170.56 and 87,203.58 is: 120,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,818.92 : 219,170.56 = 87,203.58 : x
  2. Step 2: Convert to fraction form
    158,818.92/219,170.56 = 87,203.58/x
  3. Step 3: Cross multiply
    158,818.92x = 219,170.56 × 87,203.58
  4. Step 4: Simplify right side
    158,818.92x = 19,112,457,462.60
  5. Step 5: Solve for x
    x = 19,112,457,462.60/158,818.92
  6. Step 6: Final answer
    x = 120,341.19

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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.