Home / 191,336.85-287,010-91,507.59

Finding the Fourth Proportional to 191,336.85, 287,010 and 91,507.59

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Solution

The fourth proportional to 191,336.85, 287,010 and 91,507.59 is: 137,263.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,336.85 : 287,010 = 91,507.59 : x
  2. Step 2: Convert to fraction form
    191,336.85/287,010 = 91,507.59/x
  3. Step 3: Cross multiply
    191,336.85x = 287,010 × 91,507.59
  4. Step 4: Simplify right side
    191,336.85x = 26,263,593,405.90
  5. Step 5: Solve for x
    x = 26,263,593,405.90/191,336.85
  6. Step 6: Final answer
    x = 137,263.64

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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.