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Finding the Fourth Proportional to 159,585.76, 220,228.36 and 87,967.34

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Solution

The fourth proportional to 159,585.76, 220,228.36 and 87,967.34 is: 121,394.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,585.76 : 220,228.36 = 87,967.34 : x
  2. Step 2: Convert to fraction form
    159,585.76/220,228.36 = 87,967.34/x
  3. Step 3: Cross multiply
    159,585.76x = 220,228.36 × 87,967.34
  4. Step 4: Simplify right side
    159,585.76x = 19,372,903,021.76
  5. Step 5: Solve for x
    x = 19,372,903,021.76/159,585.76
  6. Step 6: Final answer
    x = 121,394.94

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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.