Home / 139,343.54-192,293.93-75,681.38

Finding the Fourth Proportional to 139,343.54, 192,293.93 and 75,681.38

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Solution

The fourth proportional to 139,343.54, 192,293.93 and 75,681.38 is: 104,440.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,343.54 : 192,293.93 = 75,681.38 : x
  2. Step 2: Convert to fraction form
    139,343.54/192,293.93 = 75,681.38/x
  3. Step 3: Cross multiply
    139,343.54x = 192,293.93 × 75,681.38
  4. Step 4: Simplify right side
    139,343.54x = 14,553,070,657.96
  5. Step 5: Solve for x
    x = 14,553,070,657.96/139,343.54
  6. Step 6: Final answer
    x = 104,440.23

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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.