Home / 124,700.64-172,087.80-68,113.44

Finding the Fourth Proportional to 124,700.64, 172,087.80 and 68,113.44

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Solution

The fourth proportional to 124,700.64, 172,087.80 and 68,113.44 is: 93,997.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,700.64 : 172,087.80 = 68,113.44 : x
  2. Step 2: Convert to fraction form
    124,700.64/172,087.80 = 68,113.44/x
  3. Step 3: Cross multiply
    124,700.64x = 172,087.80 × 68,113.44
  4. Step 4: Simplify right side
    124,700.64x = 11,721,492,040.03
  5. Step 5: Solve for x
    x = 11,721,492,040.03/124,700.64
  6. Step 6: Final answer
    x = 93,997.05

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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.