Home / 105,651.42-145,792.35-57,901.38

Finding the Fourth Proportional to 105,651.42, 145,792.35 and 57,901.38

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Solution

The fourth proportional to 105,651.42, 145,792.35 and 57,901.38 is: 79,900.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,651.42 : 145,792.35 = 57,901.38 : x
  2. Step 2: Convert to fraction form
    105,651.42/145,792.35 = 57,901.38/x
  3. Step 3: Cross multiply
    105,651.42x = 145,792.35 × 57,901.38
  4. Step 4: Simplify right side
    105,651.42x = 8,441,578,258.44
  5. Step 5: Solve for x
    x = 8,441,578,258.44/105,651.42
  6. Step 6: Final answer
    x = 79,900.28

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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.