Home / 121,353.59-167,389.77-80,516.83

Finding the Fourth Proportional to 121,353.59, 167,389.77 and 80,516.83

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Solution

The fourth proportional to 121,353.59, 167,389.77 and 80,516.83 is: 111,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,353.59 : 167,389.77 = 80,516.83 : x
  2. Step 2: Convert to fraction form
    121,353.59/167,389.77 = 80,516.83/x
  3. Step 3: Cross multiply
    121,353.59x = 167,389.77 × 80,516.83
  4. Step 4: Simplify right side
    121,353.59x = 13,477,692,415.30
  5. Step 5: Solve for x
    x = 13,477,692,415.30/121,353.59
  6. Step 6: Final answer
    x = 111,061.35

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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.