Home / 115,985.25-160,059.95-67,615.90

Finding the Fourth Proportional to 115,985.25, 160,059.95 and 67,615.90

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Solution

The fourth proportional to 115,985.25, 160,059.95 and 67,615.90 is: 93,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,985.25 : 160,059.95 = 67,615.90 : x
  2. Step 2: Convert to fraction form
    115,985.25/160,059.95 = 67,615.90/x
  3. Step 3: Cross multiply
    115,985.25x = 160,059.95 × 67,615.90
  4. Step 4: Simplify right side
    115,985.25x = 10,822,597,088.54
  5. Step 5: Solve for x
    x = 10,822,597,088.54/115,985.25
  6. Step 6: Final answer
    x = 93,310.12

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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.