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Finding the Fourth Proportional to 111,807.07, 167,710.60 and 76,640.11

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Solution

The fourth proportional to 111,807.07, 167,710.60 and 76,640.11 is: 114,960.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,807.07 : 167,710.60 = 76,640.11 : x
  2. Step 2: Convert to fraction form
    111,807.07/167,710.60 = 76,640.11/x
  3. Step 3: Cross multiply
    111,807.07x = 167,710.60 × 76,640.11
  4. Step 4: Simplify right side
    111,807.07x = 12,853,358,832.17
  5. Step 5: Solve for x
    x = 12,853,358,832.17/111,807.07
  6. Step 6: Final answer
    x = 114,960.16

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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.