Home / 145,175.16-200,341.44-81,513.30

Finding the Fourth Proportional to 145,175.16, 200,341.44 and 81,513.30

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Solution

The fourth proportional to 145,175.16, 200,341.44 and 81,513.30 is: 112,488.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,175.16 : 200,341.44 = 81,513.30 : x
  2. Step 2: Convert to fraction form
    145,175.16/200,341.44 = 81,513.30/x
  3. Step 3: Cross multiply
    145,175.16x = 200,341.44 × 81,513.30
  4. Step 4: Simplify right side
    145,175.16x = 16,330,491,901.15
  5. Step 5: Solve for x
    x = 16,330,491,901.15/145,175.16
  6. Step 6: Final answer
    x = 112,488.20

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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.