Home / 121,454.19-167,520.01-105,292.60

Finding the Fourth Proportional to 121,454.19, 167,520.01 and 105,292.60

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Solution

The fourth proportional to 121,454.19, 167,520.01 and 105,292.60 is: 145,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,454.19 : 167,520.01 = 105,292.60 : x
  2. Step 2: Convert to fraction form
    121,454.19/167,520.01 = 105,292.60/x
  3. Step 3: Cross multiply
    121,454.19x = 167,520.01 × 105,292.60
  4. Step 4: Simplify right side
    121,454.19x = 17,638,618,226.05
  5. Step 5: Solve for x
    x = 17,638,618,226.05/121,454.19
  6. Step 6: Final answer
    x = 145,228.57

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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.