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Finding the Fourth Proportional to 187,101.92, 280,722.69 and 112,275.80

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Solution

The fourth proportional to 187,101.92, 280,722.69 and 112,275.80 is: 168,455.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,101.92 : 280,722.69 = 112,275.80 : x
  2. Step 2: Convert to fraction form
    187,101.92/280,722.69 = 112,275.80/x
  3. Step 3: Cross multiply
    187,101.92x = 280,722.69 × 112,275.80
  4. Step 4: Simplify right side
    187,101.92x = 31,518,364,597.90
  5. Step 5: Solve for x
    x = 31,518,364,597.90/187,101.92
  6. Step 6: Final answer
    x = 168,455.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.