Home / 147,388.49-203,338.37-90,701.45

Finding the Fourth Proportional to 147,388.49, 203,338.37 and 90,701.45

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Solution

The fourth proportional to 147,388.49, 203,338.37 and 90,701.45 is: 125,132.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,388.49 : 203,338.37 = 90,701.45 : x
  2. Step 2: Convert to fraction form
    147,388.49/203,338.37 = 90,701.45/x
  3. Step 3: Cross multiply
    147,388.49x = 203,338.37 × 90,701.45
  4. Step 4: Simplify right side
    147,388.49x = 18,443,084,209.70
  5. Step 5: Solve for x
    x = 18,443,084,209.70/147,388.49
  6. Step 6: Final answer
    x = 125,132.46

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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.