Home / 224,115.88-309,272.06-122,139.26

Finding the Fourth Proportional to 224,115.88, 309,272.06 and 122,139.26

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Solution

The fourth proportional to 224,115.88, 309,272.06 and 122,139.26 is: 168,547.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,115.88 : 309,272.06 = 122,139.26 : x
  2. Step 2: Convert to fraction form
    224,115.88/309,272.06 = 122,139.26/x
  3. Step 3: Cross multiply
    224,115.88x = 309,272.06 × 122,139.26
  4. Step 4: Simplify right side
    224,115.88x = 37,774,260,547.08
  5. Step 5: Solve for x
    x = 37,774,260,547.08/224,115.88
  6. Step 6: Final answer
    x = 168,547.90

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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.