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Finding the Fourth Proportional to 143,275.80, 214,913.70 and 92,756.10

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Solution

The fourth proportional to 143,275.80, 214,913.70 and 92,756.10 is: 139,134.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,275.80 : 214,913.70 = 92,756.10 : x
  2. Step 2: Convert to fraction form
    143,275.80/214,913.70 = 92,756.10/x
  3. Step 3: Cross multiply
    143,275.80x = 214,913.70 × 92,756.10
  4. Step 4: Simplify right side
    143,275.80x = 19,934,556,648.57
  5. Step 5: Solve for x
    x = 19,934,556,648.57/143,275.80
  6. Step 6: Final answer
    x = 139,134.15

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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.