Home / 123,389.76-170,277.60-66,800.64

Finding the Fourth Proportional to 123,389.76, 170,277.60 and 66,800.64

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Solution

The fourth proportional to 123,389.76, 170,277.60 and 66,800.64 is: 92,184.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,389.76 : 170,277.60 = 66,800.64 : x
  2. Step 2: Convert to fraction form
    123,389.76/170,277.60 = 66,800.64/x
  3. Step 3: Cross multiply
    123,389.76x = 170,277.60 × 66,800.64
  4. Step 4: Simplify right side
    123,389.76x = 11,374,652,657.66
  5. Step 5: Solve for x
    x = 11,374,652,657.66/123,389.76
  6. Step 6: Final answer
    x = 92,184.74

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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.