Home / 116,869.65-161,223.72-76,565.67

Finding the Fourth Proportional to 116,869.65, 161,223.72 and 76,565.67

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Solution

The fourth proportional to 116,869.65, 161,223.72 and 76,565.67 is: 105,623.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,869.65 : 161,223.72 = 76,565.67 : x
  2. Step 2: Convert to fraction form
    116,869.65/161,223.72 = 76,565.67/x
  3. Step 3: Cross multiply
    116,869.65x = 161,223.72 × 76,565.67
  4. Step 4: Simplify right side
    116,869.65x = 12,344,202,141.69
  5. Step 5: Solve for x
    x = 12,344,202,141.69/116,869.65
  6. Step 6: Final answer
    x = 105,623.68

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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.