Home / 145,536.08-200,837.92-81,874.32

Finding the Fourth Proportional to 145,536.08, 200,837.92 and 81,874.32

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Solution

The fourth proportional to 145,536.08, 200,837.92 and 81,874.32 is: 112,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536.08 : 200,837.92 = 81,874.32 : x
  2. Step 2: Convert to fraction form
    145,536.08/200,837.92 = 81,874.32/x
  3. Step 3: Cross multiply
    145,536.08x = 200,837.92 × 81,874.32
  4. Step 4: Simplify right side
    145,536.08x = 16,443,468,130.21
  5. Step 5: Solve for x
    x = 16,443,468,130.21/145,536.08
  6. Step 6: Final answer
    x = 112,985.51

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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.