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Finding the Fourth Proportional to 159,038.37, 219,471.66 and 87,417.63

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Solution

The fourth proportional to 159,038.37, 219,471.66 and 87,417.63 is: 120,635.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,038.37 : 219,471.66 = 87,417.63 : x
  2. Step 2: Convert to fraction form
    159,038.37/219,471.66 = 87,417.63/x
  3. Step 3: Cross multiply
    159,038.37x = 219,471.66 × 87,417.63
  4. Step 4: Simplify right side
    159,038.37x = 19,185,692,369.37
  5. Step 5: Solve for x
    x = 19,185,692,369.37/159,038.37
  6. Step 6: Final answer
    x = 120,635.62

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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.