Home / 217,376.04-326,113.14-77,134.68

Finding the Fourth Proportional to 217,376.04, 326,113.14 and 77,134.68

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Solution

The fourth proportional to 217,376.04, 326,113.14 and 77,134.68 is: 115,719.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,376.04 : 326,113.14 = 77,134.68 : x
  2. Step 2: Convert to fraction form
    217,376.04/326,113.14 = 77,134.68/x
  3. Step 3: Cross multiply
    217,376.04x = 326,113.14 × 77,134.68
  4. Step 4: Simplify right side
    217,376.04x = 25,154,632,697.70
  5. Step 5: Solve for x
    x = 25,154,632,697.70/217,376.04
  6. Step 6: Final answer
    x = 115,719.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.