Home / 119,278.81-178,940.14-39,321.48

Finding the Fourth Proportional to 119,278.81, 178,940.14 and 39,321.48

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Solution

The fourth proportional to 119,278.81, 178,940.14 and 39,321.48 is: 58,989.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,278.81 : 178,940.14 = 39,321.48 : x
  2. Step 2: Convert to fraction form
    119,278.81/178,940.14 = 39,321.48/x
  3. Step 3: Cross multiply
    119,278.81x = 178,940.14 × 39,321.48
  4. Step 4: Simplify right side
    119,278.81x = 7,036,191,708.93
  5. Step 5: Solve for x
    x = 7,036,191,708.93/119,278.81
  6. Step 6: Final answer
    x = 58,989.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.