Home / 118,131.36-162,948.80-75,616.08

Finding the Fourth Proportional to 118,131.36, 162,948.80 and 75,616.08

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Solution

The fourth proportional to 118,131.36, 162,948.80 and 75,616.08 is: 104,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,131.36 : 162,948.80 = 75,616.08 : x
  2. Step 2: Convert to fraction form
    118,131.36/162,948.80 = 75,616.08/x
  3. Step 3: Cross multiply
    118,131.36x = 162,948.80 × 75,616.08
  4. Step 4: Simplify right side
    118,131.36x = 12,321,548,507.57
  5. Step 5: Solve for x
    x = 12,321,548,507.57/118,131.36
  6. Step 6: Final answer
    x = 104,303.79

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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.