Home / 222,142.51-306,432.07-136,143.16

Finding the Fourth Proportional to 222,142.51, 306,432.07 and 136,143.16

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Solution

The fourth proportional to 222,142.51, 306,432.07 and 136,143.16 is: 187,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,142.51 : 306,432.07 = 136,143.16 : x
  2. Step 2: Convert to fraction form
    222,142.51/306,432.07 = 136,143.16/x
  3. Step 3: Cross multiply
    222,142.51x = 306,432.07 × 136,143.16
  4. Step 4: Simplify right side
    222,142.51x = 41,718,630,335.14
  5. Step 5: Solve for x
    x = 41,718,630,335.14/222,142.51
  6. Step 6: Final answer
    x = 187,801.20

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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.