Home / 97,742.88-134,946.24-67,168.64

Finding the Fourth Proportional to 97,742.88, 134,946.24 and 67,168.64

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Solution

The fourth proportional to 97,742.88, 134,946.24 and 67,168.64 is: 92,734.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,742.88 : 134,946.24 = 67,168.64 : x
  2. Step 2: Convert to fraction form
    97,742.88/134,946.24 = 67,168.64/x
  3. Step 3: Cross multiply
    97,742.88x = 134,946.24 × 67,168.64
  4. Step 4: Simplify right side
    97,742.88x = 9,064,155,413.91
  5. Step 5: Solve for x
    x = 9,064,155,413.91/97,742.88
  6. Step 6: Final answer
    x = 92,734.69

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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.