Home / 104,140.23-143,718.75-61,121.58

Finding the Fourth Proportional to 104,140.23, 143,718.75 and 61,121.58

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Solution

The fourth proportional to 104,140.23, 143,718.75 and 61,121.58 is: 84,350.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,140.23 : 143,718.75 = 61,121.58 : x
  2. Step 2: Convert to fraction form
    104,140.23/143,718.75 = 61,121.58/x
  3. Step 3: Cross multiply
    104,140.23x = 143,718.75 × 61,121.58
  4. Step 4: Simplify right side
    104,140.23x = 8,784,317,075.63
  5. Step 5: Solve for x
    x = 8,784,317,075.63/104,140.23
  6. Step 6: Final answer
    x = 84,350.85

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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.