Home / 85,246-117,578.64-73,895.20

Finding the Fourth Proportional to 85,246, 117,578.64 and 73,895.20

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Solution

The fourth proportional to 85,246, 117,578.64 and 73,895.20 is: 101,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,246 : 117,578.64 = 73,895.20 : x
  2. Step 2: Convert to fraction form
    85,246/117,578.64 = 73,895.20/x
  3. Step 3: Cross multiply
    85,246x = 117,578.64 × 73,895.20
  4. Step 4: Simplify right side
    85,246x = 8,688,497,118.53
  5. Step 5: Solve for x
    x = 8,688,497,118.53/85,246
  6. Step 6: Final answer
    x = 101,922.64

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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.