Home / 119,731.71-165,230.91-66,018.87

Finding the Fourth Proportional to 119,731.71, 165,230.91 and 66,018.87

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Solution

The fourth proportional to 119,731.71, 165,230.91 and 66,018.87 is: 91,106.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,731.71 : 165,230.91 = 66,018.87 : x
  2. Step 2: Convert to fraction form
    119,731.71/165,230.91 = 66,018.87/x
  3. Step 3: Cross multiply
    119,731.71x = 165,230.91 × 66,018.87
  4. Step 4: Simplify right side
    119,731.71x = 10,908,357,967.27
  5. Step 5: Solve for x
    x = 10,908,357,967.27/119,731.71
  6. Step 6: Final answer
    x = 91,106.67

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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.