Home / 191,531.61-264,311.12-105,488.96

Finding the Fourth Proportional to 191,531.61, 264,311.12 and 105,488.96

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Solution

The fourth proportional to 191,531.61, 264,311.12 and 105,488.96 is: 145,573.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,531.61 : 264,311.12 = 105,488.96 : x
  2. Step 2: Convert to fraction form
    191,531.61/264,311.12 = 105,488.96/x
  3. Step 3: Cross multiply
    191,531.61x = 264,311.12 × 105,488.96
  4. Step 4: Simplify right side
    191,531.61x = 27,881,904,107.40
  5. Step 5: Solve for x
    x = 27,881,904,107.40/191,531.61
  6. Step 6: Final answer
    x = 145,573.38

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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.