Home / 191,036.70-286,555.05-91,391.51

Finding the Fourth Proportional to 191,036.70, 286,555.05 and 91,391.51

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Solution

The fourth proportional to 191,036.70, 286,555.05 and 91,391.51 is: 137,087.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,036.70 : 286,555.05 = 91,391.51 : x
  2. Step 2: Convert to fraction form
    191,036.70/286,555.05 = 91,391.51/x
  3. Step 3: Cross multiply
    191,036.70x = 286,555.05 × 91,391.51
  4. Step 4: Simplify right side
    191,036.70x = 26,188,699,434.01
  5. Step 5: Solve for x
    x = 26,188,699,434.01/191,036.70
  6. Step 6: Final answer
    x = 137,087.27

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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.