Home / 191,042.91-286,601.36-72,705.15

Finding the Fourth Proportional to 191,042.91, 286,601.36 and 72,705.15

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Solution

The fourth proportional to 191,042.91, 286,601.36 and 72,705.15 is: 109,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,042.91 : 286,601.36 = 72,705.15 : x
  2. Step 2: Convert to fraction form
    191,042.91/286,601.36 = 72,705.15/x
  3. Step 3: Cross multiply
    191,042.91x = 286,601.36 × 72,705.15
  4. Step 4: Simplify right side
    191,042.91x = 20,837,394,505.48
  5. Step 5: Solve for x
    x = 20,837,394,505.48/191,042.91
  6. Step 6: Final answer
    x = 109,071.80

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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.