Home / 231,056.58-318,848.07-129,081.63

Finding the Fourth Proportional to 231,056.58, 318,848.07 and 129,081.63

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Solution

The fourth proportional to 231,056.58, 318,848.07 and 129,081.63 is: 178,127.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,056.58 : 318,848.07 = 129,081.63 : x
  2. Step 2: Convert to fraction form
    231,056.58/318,848.07 = 129,081.63/x
  3. Step 3: Cross multiply
    231,056.58x = 318,848.07 × 129,081.63
  4. Step 4: Simplify right side
    231,056.58x = 41,157,428,597.95
  5. Step 5: Solve for x
    x = 41,157,428,597.95/231,056.58
  6. Step 6: Final answer
    x = 178,127.06

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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.