Home / 105,407.92-158,170.20-43,122.16

Finding the Fourth Proportional to 105,407.92, 158,170.20 and 43,122.16

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Solution

The fourth proportional to 105,407.92, 158,170.20 and 43,122.16 is: 64,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,407.92 : 158,170.20 = 43,122.16 : x
  2. Step 2: Convert to fraction form
    105,407.92/158,170.20 = 43,122.16/x
  3. Step 3: Cross multiply
    105,407.92x = 158,170.20 × 43,122.16
  4. Step 4: Simplify right side
    105,407.92x = 6,820,640,671.63
  5. Step 5: Solve for x
    x = 6,820,640,671.63/105,407.92
  6. Step 6: Final answer
    x = 64,707.10

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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.