Home / 121,204.74-167,262.12-67,490.40

Finding the Fourth Proportional to 121,204.74, 167,262.12 and 67,490.40

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Solution

The fourth proportional to 121,204.74, 167,262.12 and 67,490.40 is: 93,136.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,204.74 : 167,262.12 = 67,490.40 : x
  2. Step 2: Convert to fraction form
    121,204.74/167,262.12 = 67,490.40/x
  3. Step 3: Cross multiply
    121,204.74x = 167,262.12 × 67,490.40
  4. Step 4: Simplify right side
    121,204.74x = 11,288,587,383.65
  5. Step 5: Solve for x
    x = 11,288,587,383.65/121,204.74
  6. Step 6: Final answer
    x = 93,136.52

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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.