Home / 149,905.80-225,117.90-145,240.20

Finding the Fourth Proportional to 149,905.80, 225,117.90 and 145,240.20

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Solution

The fourth proportional to 149,905.80, 225,117.90 and 145,240.20 is: 218,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,905.80 : 225,117.90 = 145,240.20 : x
  2. Step 2: Convert to fraction form
    149,905.80/225,117.90 = 145,240.20/x
  3. Step 3: Cross multiply
    149,905.80x = 225,117.90 × 145,240.20
  4. Step 4: Simplify right side
    149,905.80x = 32,696,168,819.58
  5. Step 5: Solve for x
    x = 32,696,168,819.58/149,905.80
  6. Step 6: Final answer
    x = 218,111.43

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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.