Home / 191,643.75-264,326.70-140,639.25

Finding the Fourth Proportional to 191,643.75, 264,326.70 and 140,639.25

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Solution

The fourth proportional to 191,643.75, 264,326.70 and 140,639.25 is: 193,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,643.75 : 264,326.70 = 140,639.25 : x
  2. Step 2: Convert to fraction form
    191,643.75/264,326.70 = 140,639.25/x
  3. Step 3: Cross multiply
    191,643.75x = 264,326.70 × 140,639.25
  4. Step 4: Simplify right side
    191,643.75x = 37,174,708,842.98
  5. Step 5: Solve for x
    x = 37,174,708,842.98/191,643.75
  6. Step 6: Final answer
    x = 193,978.20

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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.