Home / 147,778.35-203,772.84-99,948.66

Finding the Fourth Proportional to 147,778.35, 203,772.84 and 99,948.66

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Solution

The fourth proportional to 147,778.35, 203,772.84 and 99,948.66 is: 137,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,778.35 : 203,772.84 = 99,948.66 : x
  2. Step 2: Convert to fraction form
    147,778.35/203,772.84 = 99,948.66/x
  3. Step 3: Cross multiply
    147,778.35x = 203,772.84 × 99,948.66
  4. Step 4: Simplify right side
    147,778.35x = 20,366,822,302.39
  5. Step 5: Solve for x
    x = 20,366,822,302.39/147,778.35
  6. Step 6: Final answer
    x = 137,820.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.