Home / 209,612.19-289,266.15-114,119.88

Finding the Fourth Proportional to 209,612.19, 289,266.15 and 114,119.88

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Solution

The fourth proportional to 209,612.19, 289,266.15 and 114,119.88 is: 157,486.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,612.19 : 289,266.15 = 114,119.88 : x
  2. Step 2: Convert to fraction form
    209,612.19/289,266.15 = 114,119.88/x
  3. Step 3: Cross multiply
    209,612.19x = 289,266.15 × 114,119.88
  4. Step 4: Simplify right side
    209,612.19x = 33,011,018,326.06
  5. Step 5: Solve for x
    x = 33,011,018,326.06/209,612.19
  6. Step 6: Final answer
    x = 157,486.16

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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.