Home / 104,985.06-144,902.79-66,737.13

Finding the Fourth Proportional to 104,985.06, 144,902.79 and 66,737.13

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Solution

The fourth proportional to 104,985.06, 144,902.79 and 66,737.13 is: 92,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,985.06 : 144,902.79 = 66,737.13 : x
  2. Step 2: Convert to fraction form
    104,985.06/144,902.79 = 66,737.13/x
  3. Step 3: Cross multiply
    104,985.06x = 144,902.79 × 66,737.13
  4. Step 4: Simplify right side
    104,985.06x = 9,670,396,333.59
  5. Step 5: Solve for x
    x = 9,670,396,333.59/104,985.06
  6. Step 6: Final answer
    x = 92,112.12

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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.