Home / 146,347.12-201,962.82-81,814.51

Finding the Fourth Proportional to 146,347.12, 201,962.82 and 81,814.51

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Solution

The fourth proportional to 146,347.12, 201,962.82 and 81,814.51 is: 112,906.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,347.12 : 201,962.82 = 81,814.51 : x
  2. Step 2: Convert to fraction form
    146,347.12/201,962.82 = 81,814.51/x
  3. Step 3: Cross multiply
    146,347.12x = 201,962.82 × 81,814.51
  4. Step 4: Simplify right side
    146,347.12x = 16,523,489,156.52
  5. Step 5: Solve for x
    x = 16,523,489,156.52/146,347.12
  6. Step 6: Final answer
    x = 112,906.15

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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.