Home / 127,824.60-191,736.90-72,528.60

Finding the Fourth Proportional to 127,824.60, 191,736.90 and 72,528.60

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Solution

The fourth proportional to 127,824.60, 191,736.90 and 72,528.60 is: 108,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,824.60 : 191,736.90 = 72,528.60 : x
  2. Step 2: Convert to fraction form
    127,824.60/191,736.90 = 72,528.60/x
  3. Step 3: Cross multiply
    127,824.60x = 191,736.90 × 72,528.60
  4. Step 4: Simplify right side
    127,824.60x = 13,906,408,925.34
  5. Step 5: Solve for x
    x = 13,906,408,925.34/127,824.60
  6. Step 6: Final answer
    x = 108,792.90

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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.