Home / 121,741.60-168,055.14-74,010.20

Finding the Fourth Proportional to 121,741.60, 168,055.14 and 74,010.20

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Solution

The fourth proportional to 121,741.60, 168,055.14 and 74,010.20 is: 102,165.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,741.60 : 168,055.14 = 74,010.20 : x
  2. Step 2: Convert to fraction form
    121,741.60/168,055.14 = 74,010.20/x
  3. Step 3: Cross multiply
    121,741.60x = 168,055.14 × 74,010.20
  4. Step 4: Simplify right side
    121,741.60x = 12,437,794,522.43
  5. Step 5: Solve for x
    x = 12,437,794,522.43/121,741.60
  6. Step 6: Final answer
    x = 102,165.53

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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.