Home / 135,931.80-203,897.70-107,938.20

Finding the Fourth Proportional to 135,931.80, 203,897.70 and 107,938.20

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Solution

The fourth proportional to 135,931.80, 203,897.70 and 107,938.20 is: 161,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,931.80 : 203,897.70 = 107,938.20 : x
  2. Step 2: Convert to fraction form
    135,931.80/203,897.70 = 107,938.20/x
  3. Step 3: Cross multiply
    135,931.80x = 203,897.70 × 107,938.20
  4. Step 4: Simplify right side
    135,931.80x = 22,008,350,722.14
  5. Step 5: Solve for x
    x = 22,008,350,722.14/135,931.80
  6. Step 6: Final answer
    x = 161,907.30

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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.