Home / 121,290.35-167,395.48-73,543.55

Finding the Fourth Proportional to 121,290.35, 167,395.48 and 73,543.55

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Solution

The fourth proportional to 121,290.35, 167,395.48 and 73,543.55 is: 101,499.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,290.35 : 167,395.48 = 73,543.55 : x
  2. Step 2: Convert to fraction form
    121,290.35/167,395.48 = 73,543.55/x
  3. Step 3: Cross multiply
    121,290.35x = 167,395.48 × 73,543.55
  4. Step 4: Simplify right side
    121,290.35x = 12,310,856,832.32
  5. Step 5: Solve for x
    x = 12,310,856,832.32/121,290.35
  6. Step 6: Final answer
    x = 101,499.07

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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.