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Finding the Fourth Proportional to 115,967.10, 160,006.87 and 67,539.63

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Solution

The fourth proportional to 115,967.10, 160,006.87 and 67,539.63 is: 93,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,967.10 : 160,006.87 = 67,539.63 : x
  2. Step 2: Convert to fraction form
    115,967.10/160,006.87 = 67,539.63/x
  3. Step 3: Cross multiply
    115,967.10x = 160,006.87 × 67,539.63
  4. Step 4: Simplify right side
    115,967.10x = 10,806,805,481.71
  5. Step 5: Solve for x
    x = 10,806,805,481.71/115,967.10
  6. Step 6: Final answer
    x = 93,188.54

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1.5x scale

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.