Home / 151,634.64-209,344.20-100,716.24

Finding the Fourth Proportional to 151,634.64, 209,344.20 and 100,716.24

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Solution

The fourth proportional to 151,634.64, 209,344.20 and 100,716.24 is: 139,047.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,634.64 : 209,344.20 = 100,716.24 : x
  2. Step 2: Convert to fraction form
    151,634.64/209,344.20 = 100,716.24/x
  3. Step 3: Cross multiply
    151,634.64x = 209,344.20 × 100,716.24
  4. Step 4: Simplify right side
    151,634.64x = 21,084,360,689.81
  5. Step 5: Solve for x
    x = 21,084,360,689.81/151,634.64
  6. Step 6: Final answer
    x = 139,047.12

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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.