Home / 121,390.22-167,518.61-67,674.16

Finding the Fourth Proportional to 121,390.22, 167,518.61 and 67,674.16

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Solution

The fourth proportional to 121,390.22, 167,518.61 and 67,674.16 is: 93,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,390.22 : 167,518.61 = 67,674.16 : x
  2. Step 2: Convert to fraction form
    121,390.22/167,518.61 = 67,674.16/x
  3. Step 3: Cross multiply
    121,390.22x = 167,518.61 × 67,674.16
  4. Step 4: Simplify right side
    121,390.22x = 11,336,681,216.12
  5. Step 5: Solve for x
    x = 11,336,681,216.12/121,390.22
  6. Step 6: Final answer
    x = 93,390.40

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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.