Home / 97,147.46-134,065.78-54,129.86

Finding the Fourth Proportional to 97,147.46, 134,065.78 and 54,129.86

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Solution

The fourth proportional to 97,147.46, 134,065.78 and 54,129.86 is: 74,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,147.46 : 134,065.78 = 54,129.86 : x
  2. Step 2: Convert to fraction form
    97,147.46/134,065.78 = 54,129.86/x
  3. Step 3: Cross multiply
    97,147.46x = 134,065.78 × 54,129.86
  4. Step 4: Simplify right side
    97,147.46x = 7,256,961,902.19
  5. Step 5: Solve for x
    x = 7,256,961,902.19/97,147.46
  6. Step 6: Final answer
    x = 74,700.48

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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.