Home / 212,075.66-318,061.02-126,709.82

Finding the Fourth Proportional to 212,075.66, 318,061.02 and 126,709.82

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Solution

The fourth proportional to 212,075.66, 318,061.02 and 126,709.82 is: 190,033.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,075.66 : 318,061.02 = 126,709.82 : x
  2. Step 2: Convert to fraction form
    212,075.66/318,061.02 = 126,709.82/x
  3. Step 3: Cross multiply
    212,075.66x = 318,061.02 × 126,709.82
  4. Step 4: Simplify right side
    212,075.66x = 40,301,454,593.22
  5. Step 5: Solve for x
    x = 40,301,454,593.22/212,075.66
  6. Step 6: Final answer
    x = 190,033.38

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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.