Home / 104,339.79-143,967.92-66,114.27

Finding the Fourth Proportional to 104,339.79, 143,967.92 and 66,114.27

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Solution

The fourth proportional to 104,339.79, 143,967.92 and 66,114.27 is: 91,224.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,339.79 : 143,967.92 = 66,114.27 : x
  2. Step 2: Convert to fraction form
    104,339.79/143,967.92 = 66,114.27/x
  3. Step 3: Cross multiply
    104,339.79x = 143,967.92 × 66,114.27
  4. Step 4: Simplify right side
    104,339.79x = 9,518,333,603.65
  5. Step 5: Solve for x
    x = 9,518,333,603.65/104,339.79
  6. Step 6: Final answer
    x = 91,224.39

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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.