Home / 121,406.24-167,280.72-81,593.12

Finding the Fourth Proportional to 121,406.24, 167,280.72 and 81,593.12

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Solution

The fourth proportional to 121,406.24, 167,280.72 and 81,593.12 is: 112,423.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,406.24 : 167,280.72 = 81,593.12 : x
  2. Step 2: Convert to fraction form
    121,406.24/167,280.72 = 81,593.12/x
  3. Step 3: Cross multiply
    121,406.24x = 167,280.72 × 81,593.12
  4. Step 4: Simplify right side
    121,406.24x = 13,648,955,860.65
  5. Step 5: Solve for x
    x = 13,648,955,860.65/121,406.24
  6. Step 6: Final answer
    x = 112,423.84

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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.