Home / 153,143.68-211,357.20-92,716.60

Finding the Fourth Proportional to 153,143.68, 211,357.20 and 92,716.60

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Solution

The fourth proportional to 153,143.68, 211,357.20 and 92,716.60 is: 127,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,143.68 : 211,357.20 = 92,716.60 : x
  2. Step 2: Convert to fraction form
    153,143.68/211,357.20 = 92,716.60/x
  3. Step 3: Cross multiply
    153,143.68x = 211,357.20 × 92,716.60
  4. Step 4: Simplify right side
    153,143.68x = 19,596,320,969.52
  5. Step 5: Solve for x
    x = 19,596,320,969.52/153,143.68
  6. Step 6: Final answer
    x = 127,960.36

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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.