Home / 153,664.95-230,062.75-81,453.32

Finding the Fourth Proportional to 153,664.95, 230,062.75 and 81,453.32

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Solution

The fourth proportional to 153,664.95, 230,062.75 and 81,453.32 is: 121,949.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,664.95 : 230,062.75 = 81,453.32 : x
  2. Step 2: Convert to fraction form
    153,664.95/230,062.75 = 81,453.32/x
  3. Step 3: Cross multiply
    153,664.95x = 230,062.75 × 81,453.32
  4. Step 4: Simplify right side
    153,664.95x = 18,739,374,795.83
  5. Step 5: Solve for x
    x = 18,739,374,795.83/153,664.95
  6. Step 6: Final answer
    x = 121,949.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.