Home / 243,072.24-364,607.82-85,345.80

Finding the Fourth Proportional to 243,072.24, 364,607.82 and 85,345.80

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Solution

The fourth proportional to 243,072.24, 364,607.82 and 85,345.80 is: 128,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,072.24 : 364,607.82 = 85,345.80 : x
  2. Step 2: Convert to fraction form
    243,072.24/364,607.82 = 85,345.80/x
  3. Step 3: Cross multiply
    243,072.24x = 364,607.82 × 85,345.80
  4. Step 4: Simplify right side
    243,072.24x = 31,117,746,084.16
  5. Step 5: Solve for x
    x = 31,117,746,084.16/243,072.24
  6. Step 6: Final answer
    x = 128,018.51

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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.