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Finding the Fourth Proportional to 154,005.80, 230,835.90 and 87,477.80

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Solution

The fourth proportional to 154,005.80, 230,835.90 and 87,477.80 is: 131,118.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,005.80 : 230,835.90 = 87,477.80 : x
  2. Step 2: Convert to fraction form
    154,005.80/230,835.90 = 87,477.80/x
  3. Step 3: Cross multiply
    154,005.80x = 230,835.90 × 87,477.80
  4. Step 4: Simplify right side
    154,005.80x = 20,193,016,693.02
  5. Step 5: Solve for x
    x = 20,193,016,693.02/154,005.80
  6. Step 6: Final answer
    x = 131,118.55

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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.