Home / 128,199.53-192,317.51-39,460.43

Finding the Fourth Proportional to 128,199.53, 192,317.51 and 39,460.43

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Solution

The fourth proportional to 128,199.53, 192,317.51 and 39,460.43 is: 59,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,199.53 : 192,317.51 = 39,460.43 : x
  2. Step 2: Convert to fraction form
    128,199.53/192,317.51 = 39,460.43/x
  3. Step 3: Cross multiply
    128,199.53x = 192,317.51 × 39,460.43
  4. Step 4: Simplify right side
    128,199.53x = 7,588,931,641.13
  5. Step 5: Solve for x
    x = 7,588,931,641.13/128,199.53
  6. Step 6: Final answer
    x = 59,196.25

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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.