Home / 145,113.94-200,246.25-81,439.44

Finding the Fourth Proportional to 145,113.94, 200,246.25 and 81,439.44

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Solution

The fourth proportional to 145,113.94, 200,246.25 and 81,439.44 is: 112,380.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,113.94 : 200,246.25 = 81,439.44 : x
  2. Step 2: Convert to fraction form
    145,113.94/200,246.25 = 81,439.44/x
  3. Step 3: Cross multiply
    145,113.94x = 200,246.25 × 81,439.44
  4. Step 4: Simplify right side
    145,113.94x = 16,307,942,462.10
  5. Step 5: Solve for x
    x = 16,307,942,462.10/145,113.94
  6. Step 6: Final answer
    x = 112,380.26

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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.