Home / 147,143.06-203,064.10-86,716.25

Finding the Fourth Proportional to 147,143.06, 203,064.10 and 86,716.25

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Solution

The fourth proportional to 147,143.06, 203,064.10 and 86,716.25 is: 119,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,143.06 : 203,064.10 = 86,716.25 : x
  2. Step 2: Convert to fraction form
    147,143.06/203,064.10 = 86,716.25/x
  3. Step 3: Cross multiply
    147,143.06x = 203,064.10 × 86,716.25
  4. Step 4: Simplify right side
    147,143.06x = 17,608,956,029.51
  5. Step 5: Solve for x
    x = 17,608,956,029.51/147,143.06
  6. Step 6: Final answer
    x = 119,672.36

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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.