Home / 118,983.11-178,417.25-69,075.77

Finding the Fourth Proportional to 118,983.11, 178,417.25 and 69,075.77

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Solution

The fourth proportional to 118,983.11, 178,417.25 and 69,075.77 is: 103,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,983.11 : 178,417.25 = 69,075.77 : x
  2. Step 2: Convert to fraction form
    118,983.11/178,417.25 = 69,075.77/x
  3. Step 3: Cross multiply
    118,983.11x = 178,417.25 × 69,075.77
  4. Step 4: Simplify right side
    118,983.11x = 12,324,307,687.57
  5. Step 5: Solve for x
    x = 12,324,307,687.57/118,983.11
  6. Step 6: Final answer
    x = 103,580.32

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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.