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Finding the Fourth Proportional to 155,751.40, 233,742.30 and 103,143.40

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Solution

The fourth proportional to 155,751.40, 233,742.30 and 103,143.40 is: 154,791.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,751.40 : 233,742.30 = 103,143.40 : x
  2. Step 2: Convert to fraction form
    155,751.40/233,742.30 = 103,143.40/x
  3. Step 3: Cross multiply
    155,751.40x = 233,742.30 × 103,143.40
  4. Step 4: Simplify right side
    155,751.40x = 24,108,975,545.82
  5. Step 5: Solve for x
    x = 24,108,975,545.82/155,751.40
  6. Step 6: Final answer
    x = 154,791.39

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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.