Home / 105,400.08-157,844.16-57,942.72

Finding the Fourth Proportional to 105,400.08, 157,844.16 and 57,942.72

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Solution

The fourth proportional to 105,400.08, 157,844.16 and 57,942.72 is: 86,773.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,400.08 : 157,844.16 = 57,942.72 : x
  2. Step 2: Convert to fraction form
    105,400.08/157,844.16 = 57,942.72/x
  3. Step 3: Cross multiply
    105,400.08x = 157,844.16 × 57,942.72
  4. Step 4: Simplify right side
    105,400.08x = 9,145,919,966.52
  5. Step 5: Solve for x
    x = 9,145,919,966.52/105,400.08
  6. Step 6: Final answer
    x = 86,773.37

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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.