Home / 316,123.36-474,228.60-129,091.12

Finding the Fourth Proportional to 316,123.36, 474,228.60 and 129,091.12

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Solution

The fourth proportional to 316,123.36, 474,228.60 and 129,091.12 is: 193,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,123.36 : 474,228.60 = 129,091.12 : x
  2. Step 2: Convert to fraction form
    316,123.36/474,228.60 = 129,091.12/x
  3. Step 3: Cross multiply
    316,123.36x = 474,228.60 × 129,091.12
  4. Step 4: Simplify right side
    316,123.36x = 61,218,701,110.03
  5. Step 5: Solve for x
    x = 61,218,701,110.03/316,123.36
  6. Step 6: Final answer
    x = 193,654.47

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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.