Home / 139,921.72-193,096.02-76,263.64

Finding the Fourth Proportional to 139,921.72, 193,096.02 and 76,263.64

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Solution

The fourth proportional to 139,921.72, 193,096.02 and 76,263.64 is: 105,246.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,921.72 : 193,096.02 = 76,263.64 : x
  2. Step 2: Convert to fraction form
    139,921.72/193,096.02 = 76,263.64/x
  3. Step 3: Cross multiply
    139,921.72x = 193,096.02 × 76,263.64
  4. Step 4: Simplify right side
    139,921.72x = 14,726,205,354.71
  5. Step 5: Solve for x
    x = 14,726,205,354.71/139,921.72
  6. Step 6: Final answer
    x = 105,246.03

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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.