Home / 126,962.70-190,314.45-74,345.10

Finding the Fourth Proportional to 126,962.70, 190,314.45 and 74,345.10

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Solution

The fourth proportional to 126,962.70, 190,314.45 and 74,345.10 is: 111,441.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,962.70 : 190,314.45 = 74,345.10 : x
  2. Step 2: Convert to fraction form
    126,962.70/190,314.45 = 74,345.10/x
  3. Step 3: Cross multiply
    126,962.70x = 190,314.45 × 74,345.10
  4. Step 4: Simplify right side
    126,962.70x = 14,148,946,816.70
  5. Step 5: Solve for x
    x = 14,148,946,816.70/126,962.70
  6. Step 6: Final answer
    x = 111,441.76

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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.