Home / 145,167.36-200,280.96-81,496.32

Finding the Fourth Proportional to 145,167.36, 200,280.96 and 81,496.32

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Solution

The fourth proportional to 145,167.36, 200,280.96 and 81,496.32 is: 112,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,167.36 : 200,280.96 = 81,496.32 : x
  2. Step 2: Convert to fraction form
    145,167.36/200,280.96 = 81,496.32/x
  3. Step 3: Cross multiply
    145,167.36x = 200,280.96 × 81,496.32
  4. Step 4: Simplify right side
    145,167.36x = 16,322,161,206.07
  5. Step 5: Solve for x
    x = 16,322,161,206.07/145,167.36
  6. Step 6: Final answer
    x = 112,436.85

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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.