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Finding the Fourth Proportional to 159,199.41, 219,686.52 and 87,567.87

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Solution

The fourth proportional to 159,199.41, 219,686.52 and 87,567.87 is: 120,838.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,199.41 : 219,686.52 = 87,567.87 : x
  2. Step 2: Convert to fraction form
    159,199.41/219,686.52 = 87,567.87/x
  3. Step 3: Cross multiply
    159,199.41x = 219,686.52 × 87,567.87
  4. Step 4: Simplify right side
    159,199.41x = 19,237,480,624.11
  5. Step 5: Solve for x
    x = 19,237,480,624.11/159,199.41
  6. Step 6: Final answer
    x = 120,838.89

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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.