Home / 105,680.56-158,518.53-25,718.89

Finding the Fourth Proportional to 105,680.56, 158,518.53 and 25,718.89

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Solution

The fourth proportional to 105,680.56, 158,518.53 and 25,718.89 is: 38,577.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,680.56 : 158,518.53 = 25,718.89 : x
  2. Step 2: Convert to fraction form
    105,680.56/158,518.53 = 25,718.89/x
  3. Step 3: Cross multiply
    105,680.56x = 158,518.53 × 25,718.89
  4. Step 4: Simplify right side
    105,680.56x = 4,076,920,636.03
  5. Step 5: Solve for x
    x = 4,076,920,636.03/105,680.56
  6. Step 6: Final answer
    x = 38,577.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.