Home / 159,106.55-219,567.06-87,491.39

Finding the Fourth Proportional to 159,106.55, 219,567.06 and 87,491.39

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Solution

The fourth proportional to 159,106.55, 219,567.06 and 87,491.39 is: 120,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,106.55 : 219,567.06 = 87,491.39 : x
  2. Step 2: Convert to fraction form
    159,106.55/219,567.06 = 87,491.39/x
  3. Step 3: Cross multiply
    159,106.55x = 219,567.06 × 87,491.39
  4. Step 4: Simplify right side
    159,106.55x = 19,210,226,179.78
  5. Step 5: Solve for x
    x = 19,210,226,179.78/159,106.55
  6. Step 6: Final answer
    x = 120,738.13

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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.