Home / 121,210.83-167,269.05-67,500.54

Finding the Fourth Proportional to 121,210.83, 167,269.05 and 67,500.54

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Solution

The fourth proportional to 121,210.83, 167,269.05 and 67,500.54 is: 93,149.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,210.83 : 167,269.05 = 67,500.54 : x
  2. Step 2: Convert to fraction form
    121,210.83/167,269.05 = 67,500.54/x
  3. Step 3: Cross multiply
    121,210.83x = 167,269.05 × 67,500.54
  4. Step 4: Simplify right side
    121,210.83x = 11,290,751,200.29
  5. Step 5: Solve for x
    x = 11,290,751,200.29/121,210.83
  6. Step 6: Final answer
    x = 93,149.69

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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.