Home / 123,283.36-170,130.90-66,694.72

Finding the Fourth Proportional to 123,283.36, 170,130.90 and 66,694.72

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Solution

The fourth proportional to 123,283.36, 170,130.90 and 66,694.72 is: 92,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,283.36 : 170,130.90 = 66,694.72 : x
  2. Step 2: Convert to fraction form
    123,283.36/170,130.90 = 66,694.72/x
  3. Step 3: Cross multiply
    123,283.36x = 170,130.90 × 66,694.72
  4. Step 4: Simplify right side
    123,283.36x = 11,346,832,738.85
  5. Step 5: Solve for x
    x = 11,346,832,738.85/123,283.36
  6. Step 6: Final answer
    x = 92,038.64

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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.