Home / 120,840.06-181,278.53-61,643.43

Finding the Fourth Proportional to 120,840.06, 181,278.53 and 61,643.43

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Solution

The fourth proportional to 120,840.06, 181,278.53 and 61,643.43 is: 92,474.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,840.06 : 181,278.53 = 61,643.43 : x
  2. Step 2: Convert to fraction form
    120,840.06/181,278.53 = 61,643.43/x
  3. Step 3: Cross multiply
    120,840.06x = 181,278.53 × 61,643.43
  4. Step 4: Simplify right side
    120,840.06x = 11,174,630,066.34
  5. Step 5: Solve for x
    x = 11,174,630,066.34/120,840.06
  6. Step 6: Final answer
    x = 92,474.55

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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.