Home / 189,336.15-283,733.55-139,021.47

Finding the Fourth Proportional to 189,336.15, 283,733.55 and 139,021.47

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Solution

The fourth proportional to 189,336.15, 283,733.55 and 139,021.47 is: 208,333.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,336.15 : 283,733.55 = 139,021.47 : x
  2. Step 2: Convert to fraction form
    189,336.15/283,733.55 = 139,021.47/x
  3. Step 3: Cross multiply
    189,336.15x = 283,733.55 × 139,021.47
  4. Step 4: Simplify right side
    189,336.15x = 39,445,055,209.32
  5. Step 5: Solve for x
    x = 39,445,055,209.32/189,336.15
  6. Step 6: Final answer
    x = 208,333.46

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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.