Home / 145,534.74-200,837.12-81,873.06

Finding the Fourth Proportional to 145,534.74, 200,837.12 and 81,873.06

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Solution

The fourth proportional to 145,534.74, 200,837.12 and 81,873.06 is: 112,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,534.74 : 200,837.12 = 81,873.06 : x
  2. Step 2: Convert to fraction form
    145,534.74/200,837.12 = 81,873.06/x
  3. Step 3: Cross multiply
    145,534.74x = 200,837.12 × 81,873.06
  4. Step 4: Simplify right side
    145,534.74x = 16,443,149,166.62
  5. Step 5: Solve for x
    x = 16,443,149,166.62/145,534.74
  6. Step 6: Final answer
    x = 112,984.36

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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.