Home / 166,075.20-249,145.20-71,305.20

Finding the Fourth Proportional to 166,075.20, 249,145.20 and 71,305.20

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Solution

The fourth proportional to 166,075.20, 249,145.20 and 71,305.20 is: 106,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,075.20 : 249,145.20 = 71,305.20 : x
  2. Step 2: Convert to fraction form
    166,075.20/249,145.20 = 71,305.20/x
  3. Step 3: Cross multiply
    166,075.20x = 249,145.20 × 71,305.20
  4. Step 4: Simplify right side
    166,075.20x = 17,765,348,315.04
  5. Step 5: Solve for x
    x = 17,765,348,315.04/166,075.20
  6. Step 6: Final answer
    x = 106,971.71

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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.