Home / 104,640.62-144,403.31-56,894.00

Finding the Fourth Proportional to 104,640.62, 144,403.31 and 56,894.00

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Solution

The fourth proportional to 104,640.62, 144,403.31 and 56,894.00 is: 78,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,640.62 : 144,403.31 = 56,894.00 : x
  2. Step 2: Convert to fraction form
    104,640.62/144,403.31 = 56,894.00/x
  3. Step 3: Cross multiply
    104,640.62x = 144,403.31 × 56,894.00
  4. Step 4: Simplify right side
    104,640.62x = 8,215,681,339.36
  5. Step 5: Solve for x
    x = 8,215,681,339.36/104,640.62
  6. Step 6: Final answer
    x = 78,513.31

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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.