Home / 139,731.48-192,833.46-76,070.34

Finding the Fourth Proportional to 139,731.48, 192,833.46 and 76,070.34

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Solution

The fourth proportional to 139,731.48, 192,833.46 and 76,070.34 is: 104,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,731.48 : 192,833.46 = 76,070.34 : x
  2. Step 2: Convert to fraction form
    139,731.48/192,833.46 = 76,070.34/x
  3. Step 3: Cross multiply
    139,731.48x = 192,833.46 × 76,070.34
  4. Step 4: Simplify right side
    139,731.48x = 14,668,906,865.58
  5. Step 5: Solve for x
    x = 14,668,906,865.58/139,731.48
  6. Step 6: Final answer
    x = 104,979.26

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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.