Home / 121,142.34-167,173.65-67,426.20

Finding the Fourth Proportional to 121,142.34, 167,173.65 and 67,426.20

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Solution

The fourth proportional to 121,142.34, 167,173.65 and 67,426.20 is: 93,046.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,142.34 : 167,173.65 = 67,426.20 : x
  2. Step 2: Convert to fraction form
    121,142.34/167,173.65 = 67,426.20/x
  3. Step 3: Cross multiply
    121,142.34x = 167,173.65 × 67,426.20
  4. Step 4: Simplify right side
    121,142.34x = 11,271,883,959.63
  5. Step 5: Solve for x
    x = 11,271,883,959.63/121,142.34
  6. Step 6: Final answer
    x = 93,046.61

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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.