Home / 190,840.30-285,824.44-91,070.55

Finding the Fourth Proportional to 190,840.30, 285,824.44 and 91,070.55

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Solution

The fourth proportional to 190,840.30, 285,824.44 and 91,070.55 is: 136,397.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,840.30 : 285,824.44 = 91,070.55 : x
  2. Step 2: Convert to fraction form
    190,840.30/285,824.44 = 91,070.55/x
  3. Step 3: Cross multiply
    190,840.30x = 285,824.44 × 91,070.55
  4. Step 4: Simplify right side
    190,840.30x = 26,030,189,068.08
  5. Step 5: Solve for x
    x = 26,030,189,068.08/190,840.30
  6. Step 6: Final answer
    x = 136,397.76

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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.