Home / 102,469.16-141,407.34-57,151.16

Finding the Fourth Proportional to 102,469.16, 141,407.34 and 57,151.16

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Solution

The fourth proportional to 102,469.16, 141,407.34 and 57,151.16 is: 78,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,469.16 : 141,407.34 = 57,151.16 : x
  2. Step 2: Convert to fraction form
    102,469.16/141,407.34 = 57,151.16/x
  3. Step 3: Cross multiply
    102,469.16x = 141,407.34 × 57,151.16
  4. Step 4: Simplify right side
    102,469.16x = 8,081,593,513.51
  5. Step 5: Solve for x
    x = 8,081,593,513.51/102,469.16
  6. Step 6: Final answer
    x = 78,868.54

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1.5x scale

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.