Home / 211,075.56-291,257.24-120,426.30

Finding the Fourth Proportional to 211,075.56, 291,257.24 and 120,426.30

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Solution

The fourth proportional to 211,075.56, 291,257.24 and 120,426.30 is: 166,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,075.56 : 291,257.24 = 120,426.30 : x
  2. Step 2: Convert to fraction form
    211,075.56/291,257.24 = 120,426.30/x
  3. Step 3: Cross multiply
    211,075.56x = 291,257.24 × 120,426.30
  4. Step 4: Simplify right side
    211,075.56x = 35,075,031,159.28
  5. Step 5: Solve for x
    x = 35,075,031,159.28/211,075.56
  6. Step 6: Final answer
    x = 166,172.87

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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.