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Finding the Fourth Proportional to 173,139.73, 239,032.22 and 131,980.79

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Solution

The fourth proportional to 173,139.73, 239,032.22 and 131,980.79 is: 182,209.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,139.73 : 239,032.22 = 131,980.79 : x
  2. Step 2: Convert to fraction form
    173,139.73/239,032.22 = 131,980.79/x
  3. Step 3: Cross multiply
    173,139.73x = 239,032.22 × 131,980.79
  4. Step 4: Simplify right side
    173,139.73x = 31,547,661,168.73
  5. Step 5: Solve for x
    x = 31,547,661,168.73/173,139.73
  6. Step 6: Final answer
    x = 182,209.26

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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.