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Finding the Fourth Proportional to 115,952.04, 173,678.11 and 78,305.11

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Solution

The fourth proportional to 115,952.04, 173,678.11 and 78,305.11 is: 117,288.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,952.04 : 173,678.11 = 78,305.11 : x
  2. Step 2: Convert to fraction form
    115,952.04/173,678.11 = 78,305.11/x
  3. Step 3: Cross multiply
    115,952.04x = 173,678.11 × 78,305.11
  4. Step 4: Simplify right side
    115,952.04x = 13,599,882,878.18
  5. Step 5: Solve for x
    x = 13,599,882,878.18/115,952.04
  6. Step 6: Final answer
    x = 117,288.86

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1.5x scale

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.