Home / 121,528.44-167,705.28-66,335.64

Finding the Fourth Proportional to 121,528.44, 167,705.28 and 66,335.64

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Solution

The fourth proportional to 121,528.44, 167,705.28 and 66,335.64 is: 91,541.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,528.44 : 167,705.28 = 66,335.64 : x
  2. Step 2: Convert to fraction form
    121,528.44/167,705.28 = 66,335.64/x
  3. Step 3: Cross multiply
    121,528.44x = 167,705.28 × 66,335.64
  4. Step 4: Simplify right side
    121,528.44x = 11,124,837,080.18
  5. Step 5: Solve for x
    x = 11,124,837,080.18/121,528.44
  6. Step 6: Final answer
    x = 91,541.02

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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.