Home / 121,426.36-167,508.24-81,152.80

Finding the Fourth Proportional to 121,426.36, 167,508.24 and 81,152.80

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Solution

The fourth proportional to 121,426.36, 167,508.24 and 81,152.80 is: 111,950.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,426.36 : 167,508.24 = 81,152.80 : x
  2. Step 2: Convert to fraction form
    121,426.36/167,508.24 = 81,152.80/x
  3. Step 3: Cross multiply
    121,426.36x = 167,508.24 × 81,152.80
  4. Step 4: Simplify right side
    121,426.36x = 13,593,762,699.07
  5. Step 5: Solve for x
    x = 13,593,762,699.07/121,426.36
  6. Step 6: Final answer
    x = 111,950.67

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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.