Home / 156,030.55-215,327.66-88,043.54

Finding the Fourth Proportional to 156,030.55, 215,327.66 and 88,043.54

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Solution

The fourth proportional to 156,030.55, 215,327.66 and 88,043.54 is: 121,503.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,030.55 : 215,327.66 = 88,043.54 : x
  2. Step 2: Convert to fraction form
    156,030.55/215,327.66 = 88,043.54/x
  3. Step 3: Cross multiply
    156,030.55x = 215,327.66 × 88,043.54
  4. Step 4: Simplify right side
    156,030.55x = 18,958,207,929.46
  5. Step 5: Solve for x
    x = 18,958,207,929.46/156,030.55
  6. Step 6: Final answer
    x = 121,503.18

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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.