Home / 109,278.78-150,803.28-61,536.84

Finding the Fourth Proportional to 109,278.78, 150,803.28 and 61,536.84

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Solution

The fourth proportional to 109,278.78, 150,803.28 and 61,536.84 is: 84,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,278.78 : 150,803.28 = 61,536.84 : x
  2. Step 2: Convert to fraction form
    109,278.78/150,803.28 = 61,536.84/x
  3. Step 3: Cross multiply
    109,278.78x = 150,803.28 × 61,536.84
  4. Step 4: Simplify right side
    109,278.78x = 9,279,957,312.84
  5. Step 5: Solve for x
    x = 9,279,957,312.84/109,278.78
  6. Step 6: Final answer
    x = 84,920.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.