Home / 124,651.52-172,044.80-70,940.16

Finding the Fourth Proportional to 124,651.52, 172,044.80 and 70,940.16

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Solution

The fourth proportional to 124,651.52, 172,044.80 and 70,940.16 is: 97,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,651.52 : 172,044.80 = 70,940.16 : x
  2. Step 2: Convert to fraction form
    124,651.52/172,044.80 = 70,940.16/x
  3. Step 3: Cross multiply
    124,651.52x = 172,044.80 × 70,940.16
  4. Step 4: Simplify right side
    124,651.52x = 12,204,885,639.17
  5. Step 5: Solve for x
    x = 12,204,885,639.17/124,651.52
  6. Step 6: Final answer
    x = 97,912.05

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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.