Home / 190,630.08-286,041.51-90,771.66

Finding the Fourth Proportional to 190,630.08, 286,041.51 and 90,771.66

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Solution

The fourth proportional to 190,630.08, 286,041.51 and 90,771.66 is: 136,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,630.08 : 286,041.51 = 90,771.66 : x
  2. Step 2: Convert to fraction form
    190,630.08/286,041.51 = 90,771.66/x
  3. Step 3: Cross multiply
    190,630.08x = 286,041.51 × 90,771.66
  4. Step 4: Simplify right side
    190,630.08x = 25,964,462,691.61
  5. Step 5: Solve for x
    x = 25,964,462,691.61/190,630.08
  6. Step 6: Final answer
    x = 136,203.39

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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.