Home / 220,109.39-303,746.73-129,475.25

Finding the Fourth Proportional to 220,109.39, 303,746.73 and 129,475.25

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Solution

The fourth proportional to 220,109.39, 303,746.73 and 129,475.25 is: 178,673.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,109.39 : 303,746.73 = 129,475.25 : x
  2. Step 2: Convert to fraction form
    220,109.39/303,746.73 = 129,475.25/x
  3. Step 3: Cross multiply
    220,109.39x = 303,746.73 × 129,475.25
  4. Step 4: Simplify right side
    220,109.39x = 39,327,683,803.43
  5. Step 5: Solve for x
    x = 39,327,683,803.43/220,109.39
  6. Step 6: Final answer
    x = 178,673.36

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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.