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Finding the Fourth Proportional to 104,266.77, 143,868.11 and 65,999.40

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Solution

The fourth proportional to 104,266.77, 143,868.11 and 65,999.40 is: 91,066.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,266.77 : 143,868.11 = 65,999.40 : x
  2. Step 2: Convert to fraction form
    104,266.77/143,868.11 = 65,999.40/x
  3. Step 3: Cross multiply
    104,266.77x = 143,868.11 × 65,999.40
  4. Step 4: Simplify right side
    104,266.77x = 9,495,208,609.14
  5. Step 5: Solve for x
    x = 9,495,208,609.14/104,266.77
  6. Step 6: Final answer
    x = 91,066.49

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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.