Home / 139,016.48-207,507.36-119,420.96

Finding the Fourth Proportional to 139,016.48, 207,507.36 and 119,420.96

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Solution

The fourth proportional to 139,016.48, 207,507.36 and 119,420.96 is: 178,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,016.48 : 207,507.36 = 119,420.96 : x
  2. Step 2: Convert to fraction form
    139,016.48/207,507.36 = 119,420.96/x
  3. Step 3: Cross multiply
    139,016.48x = 207,507.36 × 119,420.96
  4. Step 4: Simplify right side
    139,016.48x = 24,780,727,541.16
  5. Step 5: Solve for x
    x = 24,780,727,541.16/139,016.48
  6. Step 6: Final answer
    x = 178,257.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.