Home / 123,100.02-169,877.52-66,511.26

Finding the Fourth Proportional to 123,100.02, 169,877.52 and 66,511.26

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Solution

The fourth proportional to 123,100.02, 169,877.52 and 66,511.26 is: 91,785.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,100.02 : 169,877.52 = 66,511.26 : x
  2. Step 2: Convert to fraction form
    123,100.02/169,877.52 = 66,511.26/x
  3. Step 3: Cross multiply
    123,100.02x = 169,877.52 × 66,511.26
  4. Step 4: Simplify right side
    123,100.02x = 11,298,767,900.88
  5. Step 5: Solve for x
    x = 11,298,767,900.88/123,100.02
  6. Step 6: Final answer
    x = 91,785.26

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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.