Home / 187,403.45-258,618.80-102,518.69

Finding the Fourth Proportional to 187,403.45, 258,618.80 and 102,518.69

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Solution

The fourth proportional to 187,403.45, 258,618.80 and 102,518.69 is: 141,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,403.45 : 258,618.80 = 102,518.69 : x
  2. Step 2: Convert to fraction form
    187,403.45/258,618.80 = 102,518.69/x
  3. Step 3: Cross multiply
    187,403.45x = 258,618.80 × 102,518.69
  4. Step 4: Simplify right side
    187,403.45x = 26,513,260,585.37
  5. Step 5: Solve for x
    x = 26,513,260,585.37/187,403.45
  6. Step 6: Final answer
    x = 141,476.91

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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.