Home / 147,015.60-220,523.40-76,885.80

Finding the Fourth Proportional to 147,015.60, 220,523.40 and 76,885.80

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Solution

The fourth proportional to 147,015.60, 220,523.40 and 76,885.80 is: 115,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,015.60 : 220,523.40 = 76,885.80 : x
  2. Step 2: Convert to fraction form
    147,015.60/220,523.40 = 76,885.80/x
  3. Step 3: Cross multiply
    147,015.60x = 220,523.40 × 76,885.80
  4. Step 4: Simplify right side
    147,015.60x = 16,955,118,027.72
  5. Step 5: Solve for x
    x = 16,955,118,027.72/147,015.60
  6. Step 6: Final answer
    x = 115,328.70

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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.