Home / 104,970.45-144,856.32-57,223.79

Finding the Fourth Proportional to 104,970.45, 144,856.32 and 57,223.79

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Solution

The fourth proportional to 104,970.45, 144,856.32 and 57,223.79 is: 78,967.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,970.45 : 144,856.32 = 57,223.79 : x
  2. Step 2: Convert to fraction form
    104,970.45/144,856.32 = 57,223.79/x
  3. Step 3: Cross multiply
    104,970.45x = 144,856.32 × 57,223.79
  4. Step 4: Simplify right side
    104,970.45x = 8,289,226,911.57
  5. Step 5: Solve for x
    x = 8,289,226,911.57/104,970.45
  6. Step 6: Final answer
    x = 78,967.24

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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.