Home / 105,318.84-145,336.62-57,572.04

Finding the Fourth Proportional to 105,318.84, 145,336.62 and 57,572.04

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Solution

The fourth proportional to 105,318.84, 145,336.62 and 57,572.04 is: 79,447.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,318.84 : 145,336.62 = 57,572.04 : x
  2. Step 2: Convert to fraction form
    105,318.84/145,336.62 = 57,572.04/x
  3. Step 3: Cross multiply
    105,318.84x = 145,336.62 × 57,572.04
  4. Step 4: Simplify right side
    105,318.84x = 8,367,325,700.10
  5. Step 5: Solve for x
    x = 8,367,325,700.10/105,318.84
  6. Step 6: Final answer
    x = 79,447.57

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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.