Home / 152,122.60-228,378.30-81,101.80

Finding the Fourth Proportional to 152,122.60, 228,378.30 and 81,101.80

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Solution

The fourth proportional to 152,122.60, 228,378.30 and 81,101.80 is: 121,756.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,122.60 : 228,378.30 = 81,101.80 : x
  2. Step 2: Convert to fraction form
    152,122.60/228,378.30 = 81,101.80/x
  3. Step 3: Cross multiply
    152,122.60x = 228,378.30 × 81,101.80
  4. Step 4: Simplify right side
    152,122.60x = 18,521,891,210.94
  5. Step 5: Solve for x
    x = 18,521,891,210.94/152,122.60
  6. Step 6: Final answer
    x = 121,756.34

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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.