Home / 209,643.48-289,314.18-114,154.20

Finding the Fourth Proportional to 209,643.48, 289,314.18 and 114,154.20

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Solution

The fourth proportional to 209,643.48, 289,314.18 and 114,154.20 is: 157,536.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,643.48 : 289,314.18 = 114,154.20 : x
  2. Step 2: Convert to fraction form
    209,643.48/289,314.18 = 114,154.20/x
  3. Step 3: Cross multiply
    209,643.48x = 289,314.18 × 114,154.20
  4. Step 4: Simplify right side
    209,643.48x = 33,026,428,766.56
  5. Step 5: Solve for x
    x = 33,026,428,766.56/209,643.48
  6. Step 6: Final answer
    x = 157,536.16

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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.