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Finding the Fourth Proportional to 187,145.76, 280,913.04 and 125,248.80

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Solution

The fourth proportional to 187,145.76, 280,913.04 and 125,248.80 is: 188,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,145.76 : 280,913.04 = 125,248.80 : x
  2. Step 2: Convert to fraction form
    187,145.76/280,913.04 = 125,248.80/x
  3. Step 3: Cross multiply
    187,145.76x = 280,913.04 × 125,248.80
  4. Step 4: Simplify right side
    187,145.76x = 35,184,021,164.35
  5. Step 5: Solve for x
    x = 35,184,021,164.35/187,145.76
  6. Step 6: Final answer
    x = 188,003.30

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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.