Home / 137,930.04-190,430.60-90,263.97

Finding the Fourth Proportional to 137,930.04, 190,430.60 and 90,263.97

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Solution

The fourth proportional to 137,930.04, 190,430.60 and 90,263.97 is: 124,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,930.04 : 190,430.60 = 90,263.97 : x
  2. Step 2: Convert to fraction form
    137,930.04/190,430.60 = 90,263.97/x
  3. Step 3: Cross multiply
    137,930.04x = 190,430.60 × 90,263.97
  4. Step 4: Simplify right side
    137,930.04x = 17,189,021,514.16
  5. Step 5: Solve for x
    x = 17,189,021,514.16/137,930.04
  6. Step 6: Final answer
    x = 124,621.30

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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.