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Finding the Fourth Proportional to 159,324, 219,881.76 and 87,718.56

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Solution

The fourth proportional to 159,324, 219,881.76 and 87,718.56 is: 121,059.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,324 : 219,881.76 = 87,718.56 : x
  2. Step 2: Convert to fraction form
    159,324/219,881.76 = 87,718.56/x
  3. Step 3: Cross multiply
    159,324x = 219,881.76 × 87,718.56
  4. Step 4: Simplify right side
    159,324x = 19,287,711,357.47
  5. Step 5: Solve for x
    x = 19,287,711,357.47/159,324
  6. Step 6: Final answer
    x = 121,059.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.