Home / 157,561.05-236,144.47-78,697.29

Finding the Fourth Proportional to 157,561.05, 236,144.47 and 78,697.29

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Solution

The fourth proportional to 157,561.05, 236,144.47 and 78,697.29 is: 117,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,561.05 : 236,144.47 = 78,697.29 : x
  2. Step 2: Convert to fraction form
    157,561.05/236,144.47 = 78,697.29/x
  3. Step 3: Cross multiply
    157,561.05x = 236,144.47 × 78,697.29
  4. Step 4: Simplify right side
    157,561.05x = 18,583,929,837.49
  5. Step 5: Solve for x
    x = 18,583,929,837.49/157,561.05
  6. Step 6: Final answer
    x = 117,947.49

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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.