Home / 158,403.21-218,594.57-85,804.73

Finding the Fourth Proportional to 158,403.21, 218,594.57 and 85,804.73

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Solution

The fourth proportional to 158,403.21, 218,594.57 and 85,804.73 is: 118,409.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,403.21 : 218,594.57 = 85,804.73 : x
  2. Step 2: Convert to fraction form
    158,403.21/218,594.57 = 85,804.73/x
  3. Step 3: Cross multiply
    158,403.21x = 218,594.57 × 85,804.73
  4. Step 4: Simplify right side
    158,403.21x = 18,756,448,058.32
  5. Step 5: Solve for x
    x = 18,756,448,058.32/158,403.21
  6. Step 6: Final answer
    x = 118,409.52

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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.