Home / 139,345.43-192,293.53-75,681.86

Finding the Fourth Proportional to 139,345.43, 192,293.53 and 75,681.86

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Solution

The fourth proportional to 139,345.43, 192,293.53 and 75,681.86 is: 104,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,345.43 : 192,293.53 = 75,681.86 : x
  2. Step 2: Convert to fraction form
    139,345.43/192,293.53 = 75,681.86/x
  3. Step 3: Cross multiply
    139,345.43x = 192,293.53 × 75,681.86
  4. Step 4: Simplify right side
    139,345.43x = 14,553,130,865.69
  5. Step 5: Solve for x
    x = 14,553,130,865.69/139,345.43
  6. Step 6: Final answer
    x = 104,439.24

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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.