Home / 105,470.20-158,316.47-103,090.02

Finding the Fourth Proportional to 105,470.20, 158,316.47 and 103,090.02

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Solution

The fourth proportional to 105,470.20, 158,316.47 and 103,090.02 is: 154,743.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,470.20 : 158,316.47 = 103,090.02 : x
  2. Step 2: Convert to fraction form
    105,470.20/158,316.47 = 103,090.02/x
  3. Step 3: Cross multiply
    105,470.20x = 158,316.47 × 103,090.02
  4. Step 4: Simplify right side
    105,470.20x = 16,320,847,915.96
  5. Step 5: Solve for x
    x = 16,320,847,915.96/105,470.20
  6. Step 6: Final answer
    x = 154,743.69

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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.