Home / 102,684.41-153,960.69-42,754.40

Finding the Fourth Proportional to 102,684.41, 153,960.69 and 42,754.40

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Solution

The fourth proportional to 102,684.41, 153,960.69 and 42,754.40 is: 64,104.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,684.41 : 153,960.69 = 42,754.40 : x
  2. Step 2: Convert to fraction form
    102,684.41/153,960.69 = 42,754.40/x
  3. Step 3: Cross multiply
    102,684.41x = 153,960.69 × 42,754.40
  4. Step 4: Simplify right side
    102,684.41x = 6,582,496,154.73
  5. Step 5: Solve for x
    x = 6,582,496,154.73/102,684.41
  6. Step 6: Final answer
    x = 64,104.15

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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.