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Finding the Fourth Proportional to 187,605.57, 258,895.71 and 102,722.67

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Solution

The fourth proportional to 187,605.57, 258,895.71 and 102,722.67 is: 141,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,605.57 : 258,895.71 = 102,722.67 : x
  2. Step 2: Convert to fraction form
    187,605.57/258,895.71 = 102,722.67/x
  3. Step 3: Cross multiply
    187,605.57x = 258,895.71 × 102,722.67
  4. Step 4: Simplify right side
    187,605.57x = 26,594,458,582.75
  5. Step 5: Solve for x
    x = 26,594,458,582.75/187,605.57
  6. Step 6: Final answer
    x = 141,757.30

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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.