Home / 153,940.26-212,426.37-89,380.02

Finding the Fourth Proportional to 153,940.26, 212,426.37 and 89,380.02

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Solution

The fourth proportional to 153,940.26, 212,426.37 and 89,380.02 is: 123,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,940.26 : 212,426.37 = 89,380.02 : x
  2. Step 2: Convert to fraction form
    153,940.26/212,426.37 = 89,380.02/x
  3. Step 3: Cross multiply
    153,940.26x = 212,426.37 × 89,380.02
  4. Step 4: Simplify right side
    153,940.26x = 18,986,673,199.13
  5. Step 5: Solve for x
    x = 18,986,673,199.13/153,940.26
  6. Step 6: Final answer
    x = 123,337.93

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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.