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Finding the Fourth Proportional to 128,184.58, 192,277.32 and 39,437.48

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Solution

The fourth proportional to 128,184.58, 192,277.32 and 39,437.48 is: 59,156.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,184.58 : 192,277.32 = 39,437.48 : x
  2. Step 2: Convert to fraction form
    128,184.58/192,277.32 = 39,437.48/x
  3. Step 3: Cross multiply
    128,184.58x = 192,277.32 × 39,437.48
  4. Step 4: Simplify right side
    128,184.58x = 7,582,932,961.95
  5. Step 5: Solve for x
    x = 7,582,932,961.95/128,184.58
  6. Step 6: Final answer
    x = 59,156.36

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1.5x scale

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.