Home / 105,285.62-145,294.54-57,538.96

Finding the Fourth Proportional to 105,285.62, 145,294.54 and 57,538.96

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Solution

The fourth proportional to 105,285.62, 145,294.54 and 57,538.96 is: 79,403.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,285.62 : 145,294.54 = 57,538.96 : x
  2. Step 2: Convert to fraction form
    105,285.62/145,294.54 = 57,538.96/x
  3. Step 3: Cross multiply
    105,285.62x = 145,294.54 × 57,538.96
  4. Step 4: Simplify right side
    105,285.62x = 8,360,096,725.28
  5. Step 5: Solve for x
    x = 8,360,096,725.28/105,285.62
  6. Step 6: Final answer
    x = 79,403.97

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1.5x scale

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.