Home / 140,121.83-210,216.09-45,352.02

Finding the Fourth Proportional to 140,121.83, 210,216.09 and 45,352.02

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Solution

The fourth proportional to 140,121.83, 210,216.09 and 45,352.02 is: 68,038.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,121.83 : 210,216.09 = 45,352.02 : x
  2. Step 2: Convert to fraction form
    140,121.83/210,216.09 = 45,352.02/x
  3. Step 3: Cross multiply
    140,121.83x = 210,216.09 × 45,352.02
  4. Step 4: Simplify right side
    140,121.83x = 9,533,724,318.00
  5. Step 5: Solve for x
    x = 9,533,724,318.00/140,121.83
  6. Step 6: Final answer
    x = 68,038.82

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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.