Home / 220,681.36-304,537.32-120,079.12

Finding the Fourth Proportional to 220,681.36, 304,537.32 and 120,079.12

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Solution

The fourth proportional to 220,681.36, 304,537.32 and 120,079.12 is: 165,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,681.36 : 304,537.32 = 120,079.12 : x
  2. Step 2: Convert to fraction form
    220,681.36/304,537.32 = 120,079.12/x
  3. Step 3: Cross multiply
    220,681.36x = 304,537.32 × 120,079.12
  4. Step 4: Simplify right side
    220,681.36x = 36,568,573,392.76
  5. Step 5: Solve for x
    x = 36,568,573,392.76/220,681.36
  6. Step 6: Final answer
    x = 165,707.58

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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.