Home / 145,534.39-200,837.16-81,872.24

Finding the Fourth Proportional to 145,534.39, 200,837.16 and 81,872.24

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Solution

The fourth proportional to 145,534.39, 200,837.16 and 81,872.24 is: 112,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,534.39 : 200,837.16 = 81,872.24 : x
  2. Step 2: Convert to fraction form
    145,534.39/200,837.16 = 81,872.24/x
  3. Step 3: Cross multiply
    145,534.39x = 200,837.16 × 81,872.24
  4. Step 4: Simplify right side
    145,534.39x = 16,442,987,160.25
  5. Step 5: Solve for x
    x = 16,442,987,160.25/145,534.39
  6. Step 6: Final answer
    x = 112,983.52

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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.