Home / 121,173.23-167,110.19-75,855.34

Finding the Fourth Proportional to 121,173.23, 167,110.19 and 75,855.34

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Solution

The fourth proportional to 121,173.23, 167,110.19 and 75,855.34 is: 104,612.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,173.23 : 167,110.19 = 75,855.34 : x
  2. Step 2: Convert to fraction form
    121,173.23/167,110.19 = 75,855.34/x
  3. Step 3: Cross multiply
    121,173.23x = 167,110.19 × 75,855.34
  4. Step 4: Simplify right side
    121,173.23x = 12,676,199,767.32
  5. Step 5: Solve for x
    x = 12,676,199,767.32/121,173.23
  6. Step 6: Final answer
    x = 104,612.21

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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.