Home / 145,745.19-218,124.00-89,620.85

Finding the Fourth Proportional to 145,745.19, 218,124.00 and 89,620.85

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Solution

The fourth proportional to 145,745.19, 218,124.00 and 89,620.85 is: 134,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,745.19 : 218,124.00 = 89,620.85 : x
  2. Step 2: Convert to fraction form
    145,745.19/218,124.00 = 89,620.85/x
  3. Step 3: Cross multiply
    145,745.19x = 218,124.00 × 89,620.85
  4. Step 4: Simplify right side
    145,745.19x = 19,548,456,746.68
  5. Step 5: Solve for x
    x = 19,548,456,746.68/145,745.19
  6. Step 6: Final answer
    x = 134,127.63

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1.5x scale

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.