Home / 126,830.62-190,275.09-38,085.81

Finding the Fourth Proportional to 126,830.62, 190,275.09 and 38,085.81

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Solution

The fourth proportional to 126,830.62, 190,275.09 and 38,085.81 is: 57,137.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,830.62 : 190,275.09 = 38,085.81 : x
  2. Step 2: Convert to fraction form
    126,830.62/190,275.09 = 38,085.81/x
  3. Step 3: Cross multiply
    126,830.62x = 190,275.09 × 38,085.81
  4. Step 4: Simplify right side
    126,830.62x = 7,246,779,974.10
  5. Step 5: Solve for x
    x = 7,246,779,974.10/126,830.62
  6. Step 6: Final answer
    x = 57,137.46

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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.