Home / 243,225.29-364,800.50-81,122.19

Finding the Fourth Proportional to 243,225.29, 364,800.50 and 81,122.19

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Solution

The fourth proportional to 243,225.29, 364,800.50 and 81,122.19 is: 121,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,225.29 : 364,800.50 = 81,122.19 : x
  2. Step 2: Convert to fraction form
    243,225.29/364,800.50 = 81,122.19/x
  3. Step 3: Cross multiply
    243,225.29x = 364,800.50 × 81,122.19
  4. Step 4: Simplify right side
    243,225.29x = 29,593,415,067.48
  5. Step 5: Solve for x
    x = 29,593,415,067.48/243,225.29
  6. Step 6: Final answer
    x = 121,670.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.