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Finding the Fourth Proportional to 170,640, 235,483.20 and 95,188.50

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Solution

The fourth proportional to 170,640, 235,483.20 and 95,188.50 is: 131,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,640 : 235,483.20 = 95,188.50 : x
  2. Step 2: Convert to fraction form
    170,640/235,483.20 = 95,188.50/x
  3. Step 3: Cross multiply
    170,640x = 235,483.20 × 95,188.50
  4. Step 4: Simplify right side
    170,640x = 22,415,292,583.20
  5. Step 5: Solve for x
    x = 22,415,292,583.20/170,640
  6. Step 6: Final answer
    x = 131,360.13

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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.