Home / 121,146.32-167,181.91-67,430.18

Finding the Fourth Proportional to 121,146.32, 167,181.91 and 67,430.18

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Solution

The fourth proportional to 121,146.32, 167,181.91 and 67,430.18 is: 93,053.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,146.32 : 167,181.91 = 67,430.18 : x
  2. Step 2: Convert to fraction form
    121,146.32/167,181.91 = 67,430.18/x
  3. Step 3: Cross multiply
    121,146.32x = 167,181.91 × 67,430.18
  4. Step 4: Simplify right side
    121,146.32x = 11,273,105,110.98
  5. Step 5: Solve for x
    x = 11,273,105,110.98/121,146.32
  6. Step 6: Final answer
    x = 93,053.63

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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.