Home / 152,154.40-228,231.60-128,534.80

Finding the Fourth Proportional to 152,154.40, 228,231.60 and 128,534.80

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Solution

The fourth proportional to 152,154.40, 228,231.60 and 128,534.80 is: 192,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,154.40 : 228,231.60 = 128,534.80 : x
  2. Step 2: Convert to fraction form
    152,154.40/228,231.60 = 128,534.80/x
  3. Step 3: Cross multiply
    152,154.40x = 228,231.60 × 128,534.80
  4. Step 4: Simplify right side
    152,154.40x = 29,335,703,059.68
  5. Step 5: Solve for x
    x = 29,335,703,059.68/152,154.40
  6. Step 6: Final answer
    x = 192,802.20

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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.