Home / 187,152.09-258,276.27-102,274.62

Finding the Fourth Proportional to 187,152.09, 258,276.27 and 102,274.62

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Solution

The fourth proportional to 187,152.09, 258,276.27 and 102,274.62 is: 141,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,152.09 : 258,276.27 = 102,274.62 : x
  2. Step 2: Convert to fraction form
    187,152.09/258,276.27 = 102,274.62/x
  3. Step 3: Cross multiply
    187,152.09x = 258,276.27 × 102,274.62
  4. Step 4: Simplify right side
    187,152.09x = 26,415,107,369.27
  5. Step 5: Solve for x
    x = 26,415,107,369.27/187,152.09
  6. Step 6: Final answer
    x = 141,142.47

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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.