Home / 180,976.63-249,777.73-100,430.03

Finding the Fourth Proportional to 180,976.63, 249,777.73 and 100,430.03

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Solution

The fourth proportional to 180,976.63, 249,777.73 and 100,430.03 is: 138,610.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,976.63 : 249,777.73 = 100,430.03 : x
  2. Step 2: Convert to fraction form
    180,976.63/249,777.73 = 100,430.03/x
  3. Step 3: Cross multiply
    180,976.63x = 249,777.73 × 100,430.03
  4. Step 4: Simplify right side
    180,976.63x = 25,085,184,917.23
  5. Step 5: Solve for x
    x = 25,085,184,917.23/180,976.63
  6. Step 6: Final answer
    x = 138,610.08

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1.5x scale

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.