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Finding the Fourth Proportional to 122,950.60, 184,425.90 and 87,521.20

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Solution

The fourth proportional to 122,950.60, 184,425.90 and 87,521.20 is: 131,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,950.60 : 184,425.90 = 87,521.20 : x
  2. Step 2: Convert to fraction form
    122,950.60/184,425.90 = 87,521.20/x
  3. Step 3: Cross multiply
    122,950.60x = 184,425.90 × 87,521.20
  4. Step 4: Simplify right side
    122,950.60x = 16,141,176,079.08
  5. Step 5: Solve for x
    x = 16,141,176,079.08/122,950.60
  6. Step 6: Final answer
    x = 131,281.80

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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.