Home / 105,608.84-145,740.51-57,211.26

Finding the Fourth Proportional to 105,608.84, 145,740.51 and 57,211.26

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Solution

The fourth proportional to 105,608.84, 145,740.51 and 57,211.26 is: 78,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,608.84 : 145,740.51 = 57,211.26 : x
  2. Step 2: Convert to fraction form
    105,608.84/145,740.51 = 57,211.26/x
  3. Step 3: Cross multiply
    105,608.84x = 145,740.51 × 57,211.26
  4. Step 4: Simplify right side
    105,608.84x = 8,337,998,210.14
  5. Step 5: Solve for x
    x = 8,337,998,210.14/105,608.84
  6. Step 6: Final answer
    x = 78,951.71

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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.