Home / 140,931.87-211,176.09-108,989.15

Finding the Fourth Proportional to 140,931.87, 211,176.09 and 108,989.15

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Solution

The fourth proportional to 140,931.87, 211,176.09 and 108,989.15 is: 163,312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,931.87 : 211,176.09 = 108,989.15 : x
  2. Step 2: Convert to fraction form
    140,931.87/211,176.09 = 108,989.15/x
  3. Step 3: Cross multiply
    140,931.87x = 211,176.09 × 108,989.15
  4. Step 4: Simplify right side
    140,931.87x = 23,015,901,876.71
  5. Step 5: Solve for x
    x = 23,015,901,876.71/140,931.87
  6. Step 6: Final answer
    x = 163,312.25

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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.