Home / 190,205.40-285,322.68-57,075.96

Finding the Fourth Proportional to 190,205.40, 285,322.68 and 57,075.96

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Solution

The fourth proportional to 190,205.40, 285,322.68 and 57,075.96 is: 85,618.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,205.40 : 285,322.68 = 57,075.96 : x
  2. Step 2: Convert to fraction form
    190,205.40/285,322.68 = 57,075.96/x
  3. Step 3: Cross multiply
    190,205.40x = 285,322.68 × 57,075.96
  4. Step 4: Simplify right side
    190,205.40x = 16,285,065,870.77
  5. Step 5: Solve for x
    x = 16,285,065,870.77/190,205.40
  6. Step 6: Final answer
    x = 85,618.32

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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.