Home / 158,103.26-218,238.09-97,720.22

Finding the Fourth Proportional to 158,103.26, 218,238.09 and 97,720.22

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Solution

The fourth proportional to 158,103.26, 218,238.09 and 97,720.22 is: 134,888.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,103.26 : 218,238.09 = 97,720.22 : x
  2. Step 2: Convert to fraction form
    158,103.26/218,238.09 = 97,720.22/x
  3. Step 3: Cross multiply
    158,103.26x = 218,238.09 × 97,720.22
  4. Step 4: Simplify right side
    158,103.26x = 21,326,274,167.18
  5. Step 5: Solve for x
    x = 21,326,274,167.18/158,103.26
  6. Step 6: Final answer
    x = 134,888.26

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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.