Home / 187,666.25-258,981.25-112,214.75

Finding the Fourth Proportional to 187,666.25, 258,981.25 and 112,214.75

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Solution

The fourth proportional to 187,666.25, 258,981.25 and 112,214.75 is: 154,857.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,666.25 : 258,981.25 = 112,214.75 : x
  2. Step 2: Convert to fraction form
    187,666.25/258,981.25 = 112,214.75/x
  3. Step 3: Cross multiply
    187,666.25x = 258,981.25 × 112,214.75
  4. Step 4: Simplify right side
    187,666.25x = 29,061,516,223.44
  5. Step 5: Solve for x
    x = 29,061,516,223.44/187,666.25
  6. Step 6: Final answer
    x = 154,857.45

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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.