Home / 187,608.32-258,848.16-120,579.20

Finding the Fourth Proportional to 187,608.32, 258,848.16 and 120,579.20

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Solution

The fourth proportional to 187,608.32, 258,848.16 and 120,579.20 is: 166,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,608.32 : 258,848.16 = 120,579.20 : x
  2. Step 2: Convert to fraction form
    187,608.32/258,848.16 = 120,579.20/x
  3. Step 3: Cross multiply
    187,608.32x = 258,848.16 × 120,579.20
  4. Step 4: Simplify right side
    187,608.32x = 31,211,704,054.27
  5. Step 5: Solve for x
    x = 31,211,704,054.27/187,608.32
  6. Step 6: Final answer
    x = 166,366.31

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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.