Home / 123,391.63-170,281.27-66,803.01

Finding the Fourth Proportional to 123,391.63, 170,281.27 and 66,803.01

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Solution

The fourth proportional to 123,391.63, 170,281.27 and 66,803.01 is: 92,188.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,391.63 : 170,281.27 = 66,803.01 : x
  2. Step 2: Convert to fraction form
    123,391.63/170,281.27 = 66,803.01/x
  3. Step 3: Cross multiply
    123,391.63x = 170,281.27 × 66,803.01
  4. Step 4: Simplify right side
    123,391.63x = 11,375,301,382.62
  5. Step 5: Solve for x
    x = 11,375,301,382.62/123,391.63
  6. Step 6: Final answer
    x = 92,188.60

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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.