Home / 157,278.69-235,920.78-52,100.42

Finding the Fourth Proportional to 157,278.69, 235,920.78 and 52,100.42

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Solution

The fourth proportional to 157,278.69, 235,920.78 and 52,100.42 is: 78,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,278.69 : 235,920.78 = 52,100.42 : x
  2. Step 2: Convert to fraction form
    157,278.69/235,920.78 = 52,100.42/x
  3. Step 3: Cross multiply
    157,278.69x = 235,920.78 × 52,100.42
  4. Step 4: Simplify right side
    157,278.69x = 12,291,570,545.12
  5. Step 5: Solve for x
    x = 12,291,570,545.12/157,278.69
  6. Step 6: Final answer
    x = 78,151.53

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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.