Home / 157,428.88-236,187.24-68,690.32

Finding the Fourth Proportional to 157,428.88, 236,187.24 and 68,690.32

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Solution

The fourth proportional to 157,428.88, 236,187.24 and 68,690.32 is: 103,054.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,428.88 : 236,187.24 = 68,690.32 : x
  2. Step 2: Convert to fraction form
    157,428.88/236,187.24 = 68,690.32/x
  3. Step 3: Cross multiply
    157,428.88x = 236,187.24 × 68,690.32
  4. Step 4: Simplify right side
    157,428.88x = 16,223,777,095.52
  5. Step 5: Solve for x
    x = 16,223,777,095.52/157,428.88
  6. Step 6: Final answer
    x = 103,054.64

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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.