Home / 151,360.45-208,873.08-86,840.51

Finding the Fourth Proportional to 151,360.45, 208,873.08 and 86,840.51

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Solution

The fourth proportional to 151,360.45, 208,873.08 and 86,840.51 is: 119,837.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,360.45 : 208,873.08 = 86,840.51 : x
  2. Step 2: Convert to fraction form
    151,360.45/208,873.08 = 86,840.51/x
  3. Step 3: Cross multiply
    151,360.45x = 208,873.08 × 86,840.51
  4. Step 4: Simplify right side
    151,360.45x = 18,138,643,748.11
  5. Step 5: Solve for x
    x = 18,138,643,748.11/151,360.45
  6. Step 6: Final answer
    x = 119,837.41

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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.