Home / 124,210.20-171,412.80-67,621.56

Finding the Fourth Proportional to 124,210.20, 171,412.80 and 67,621.56

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Solution

The fourth proportional to 124,210.20, 171,412.80 and 67,621.56 is: 93,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,210.20 : 171,412.80 = 67,621.56 : x
  2. Step 2: Convert to fraction form
    124,210.20/171,412.80 = 67,621.56/x
  3. Step 3: Cross multiply
    124,210.20x = 171,412.80 × 67,621.56
  4. Step 4: Simplify right side
    124,210.20x = 11,591,200,939.97
  5. Step 5: Solve for x
    x = 11,591,200,939.97/124,210.20
  6. Step 6: Final answer
    x = 93,319.24

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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.