Home / 231,050.47-318,838.23-129,055.63

Finding the Fourth Proportional to 231,050.47, 318,838.23 and 129,055.63

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Solution

The fourth proportional to 231,050.47, 318,838.23 and 129,055.63 is: 178,090.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,050.47 : 318,838.23 = 129,055.63 : x
  2. Step 2: Convert to fraction form
    231,050.47/318,838.23 = 129,055.63/x
  3. Step 3: Cross multiply
    231,050.47x = 318,838.23 × 129,055.63
  4. Step 4: Simplify right side
    231,050.47x = 41,147,868,640.73
  5. Step 5: Solve for x
    x = 41,147,868,640.73/231,050.47
  6. Step 6: Final answer
    x = 178,090.39

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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.