Home / 196,009.76-270,207.15-138,547.70

Finding the Fourth Proportional to 196,009.76, 270,207.15 and 138,547.70

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Solution

The fourth proportional to 196,009.76, 270,207.15 and 138,547.70 is: 190,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,009.76 : 270,207.15 = 138,547.70 : x
  2. Step 2: Convert to fraction form
    196,009.76/270,207.15 = 138,547.70/x
  3. Step 3: Cross multiply
    196,009.76x = 270,207.15 × 138,547.70
  4. Step 4: Simplify right side
    196,009.76x = 37,436,579,156.06
  5. Step 5: Solve for x
    x = 37,436,579,156.06/196,009.76
  6. Step 6: Final answer
    x = 190,993.44

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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.