Home / 155,420.10-231,995.48-133,375.14

Finding the Fourth Proportional to 155,420.10, 231,995.48 and 133,375.14

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Solution

The fourth proportional to 155,420.10, 231,995.48 and 133,375.14 is: 199,088.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,420.10 : 231,995.48 = 133,375.14 : x
  2. Step 2: Convert to fraction form
    155,420.10/231,995.48 = 133,375.14/x
  3. Step 3: Cross multiply
    155,420.10x = 231,995.48 × 133,375.14
  4. Step 4: Simplify right side
    155,420.10x = 30,942,428,957.49
  5. Step 5: Solve for x
    x = 30,942,428,957.49/155,420.10
  6. Step 6: Final answer
    x = 199,088.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.