Home / 282,563.12-423,866.55-80,155.81

Finding the Fourth Proportional to 282,563.12, 423,866.55 and 80,155.81

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Solution

The fourth proportional to 282,563.12, 423,866.55 and 80,155.81 is: 120,239.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,563.12 : 423,866.55 = 80,155.81 : x
  2. Step 2: Convert to fraction form
    282,563.12/423,866.55 = 80,155.81/x
  3. Step 3: Cross multiply
    282,563.12x = 423,866.55 × 80,155.81
  4. Step 4: Simplify right side
    282,563.12x = 33,975,366,647.16
  5. Step 5: Solve for x
    x = 33,975,366,647.16/282,563.12
  6. Step 6: Final answer
    x = 120,239.92

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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.