Home / 113,640.81-170,272.74-69,132.93

Finding the Fourth Proportional to 113,640.81, 170,272.74 and 69,132.93

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Solution

The fourth proportional to 113,640.81, 170,272.74 and 69,132.93 is: 103,584.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,640.81 : 170,272.74 = 69,132.93 : x
  2. Step 2: Convert to fraction form
    113,640.81/170,272.74 = 69,132.93/x
  3. Step 3: Cross multiply
    113,640.81x = 170,272.74 × 69,132.93
  4. Step 4: Simplify right side
    113,640.81x = 11,771,453,415.33
  5. Step 5: Solve for x
    x = 11,771,453,415.33/113,640.81
  6. Step 6: Final answer
    x = 103,584.74

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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.