Home / 105,460.62-145,539.99-57,718.14

Finding the Fourth Proportional to 105,460.62, 145,539.99 and 57,718.14

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Solution

The fourth proportional to 105,460.62, 145,539.99 and 57,718.14 is: 79,653.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,460.62 : 145,539.99 = 57,718.14 : x
  2. Step 2: Convert to fraction form
    105,460.62/145,539.99 = 57,718.14/x
  3. Step 3: Cross multiply
    105,460.62x = 145,539.99 × 57,718.14
  4. Step 4: Simplify right side
    105,460.62x = 8,400,297,518.42
  5. Step 5: Solve for x
    x = 8,400,297,518.42/105,460.62
  6. Step 6: Final answer
    x = 79,653.41

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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.