Home / 139,347.29-192,298.19-75,685.54

Finding the Fourth Proportional to 139,347.29, 192,298.19 and 75,685.54

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Solution

The fourth proportional to 139,347.29, 192,298.19 and 75,685.54 is: 104,445.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,347.29 : 192,298.19 = 75,685.54 : x
  2. Step 2: Convert to fraction form
    139,347.29/192,298.19 = 75,685.54/x
  3. Step 3: Cross multiply
    139,347.29x = 192,298.19 × 75,685.54
  4. Step 4: Simplify right side
    139,347.29x = 14,554,192,059.64
  5. Step 5: Solve for x
    x = 14,554,192,059.64/139,347.29
  6. Step 6: Final answer
    x = 104,445.47

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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.