Home / 121,426.40-167,539.92-73,678.64

Finding the Fourth Proportional to 121,426.40, 167,539.92 and 73,678.64

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Solution

The fourth proportional to 121,426.40, 167,539.92 and 73,678.64 is: 101,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,426.40 : 167,539.92 = 73,678.64 : x
  2. Step 2: Convert to fraction form
    121,426.40/167,539.92 = 73,678.64/x
  3. Step 3: Cross multiply
    121,426.40x = 167,539.92 × 73,678.64
  4. Step 4: Simplify right side
    121,426.40x = 12,344,113,451.31
  5. Step 5: Solve for x
    x = 12,344,113,451.31/121,426.40
  6. Step 6: Final answer
    x = 101,659.22

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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.