Home / 123,567.93-170,519.18-66,978.09

Finding the Fourth Proportional to 123,567.93, 170,519.18 and 66,978.09

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Solution

The fourth proportional to 123,567.93, 170,519.18 and 66,978.09 is: 92,427.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,567.93 : 170,519.18 = 66,978.09 : x
  2. Step 2: Convert to fraction form
    123,567.93/170,519.18 = 66,978.09/x
  3. Step 3: Cross multiply
    123,567.93x = 170,519.18 × 66,978.09
  4. Step 4: Simplify right side
    123,567.93x = 11,421,048,649.88
  5. Step 5: Solve for x
    x = 11,421,048,649.88/123,567.93
  6. Step 6: Final answer
    x = 92,427.29

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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.