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Finding the Fourth Proportional to 124,953.60, 187,223.04 and 87,939.84

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Solution

The fourth proportional to 124,953.60, 187,223.04 and 87,939.84 is: 131,763.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,953.60 : 187,223.04 = 87,939.84 : x
  2. Step 2: Convert to fraction form
    124,953.60/187,223.04 = 87,939.84/x
  3. Step 3: Cross multiply
    124,953.60x = 187,223.04 × 87,939.84
  4. Step 4: Simplify right side
    124,953.60x = 16,464,364,181.91
  5. Step 5: Solve for x
    x = 16,464,364,181.91/124,953.60
  6. Step 6: Final answer
    x = 131,763.82

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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.