Home / 103,418.32-155,089.17-36,840.76

Finding the Fourth Proportional to 103,418.32, 155,089.17 and 36,840.76

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Solution

The fourth proportional to 103,418.32, 155,089.17 and 36,840.76 is: 55,247.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,418.32 : 155,089.17 = 36,840.76 : x
  2. Step 2: Convert to fraction form
    103,418.32/155,089.17 = 36,840.76/x
  3. Step 3: Cross multiply
    103,418.32x = 155,089.17 × 36,840.76
  4. Step 4: Simplify right side
    103,418.32x = 5,713,602,890.57
  5. Step 5: Solve for x
    x = 5,713,602,890.57/103,418.32
  6. Step 6: Final answer
    x = 55,247.49

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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.