Home / 140,490.48-193,889.79-83,900.64

Finding the Fourth Proportional to 140,490.48, 193,889.79 and 83,900.64

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Solution

The fourth proportional to 140,490.48, 193,889.79 and 83,900.64 is: 115,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,490.48 : 193,889.79 = 83,900.64 : x
  2. Step 2: Convert to fraction form
    140,490.48/193,889.79 = 83,900.64/x
  3. Step 3: Cross multiply
    140,490.48x = 193,889.79 × 83,900.64
  4. Step 4: Simplify right side
    140,490.48x = 16,267,477,470.47
  5. Step 5: Solve for x
    x = 16,267,477,470.47/140,490.48
  6. Step 6: Final answer
    x = 115,790.60

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1.5x scale

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.