Home / 151,272.82-208,754.77-83,288.40

Finding the Fourth Proportional to 151,272.82, 208,754.77 and 83,288.40

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Solution

The fourth proportional to 151,272.82, 208,754.77 and 83,288.40 is: 114,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,272.82 : 208,754.77 = 83,288.40 : x
  2. Step 2: Convert to fraction form
    151,272.82/208,754.77 = 83,288.40/x
  3. Step 3: Cross multiply
    151,272.82x = 208,754.77 × 83,288.40
  4. Step 4: Simplify right side
    151,272.82x = 17,386,851,125.03
  5. Step 5: Solve for x
    x = 17,386,851,125.03/151,272.82
  6. Step 6: Final answer
    x = 114,937.05

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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.