Home / 100,970.96-139,340.04-58,554.14

Finding the Fourth Proportional to 100,970.96, 139,340.04 and 58,554.14

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Solution

The fourth proportional to 100,970.96, 139,340.04 and 58,554.14 is: 80,804.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,970.96 : 139,340.04 = 58,554.14 : x
  2. Step 2: Convert to fraction form
    100,970.96/139,340.04 = 58,554.14/x
  3. Step 3: Cross multiply
    100,970.96x = 139,340.04 × 58,554.14
  4. Step 4: Simplify right side
    100,970.96x = 8,158,936,209.77
  5. Step 5: Solve for x
    x = 8,158,936,209.77/100,970.96
  6. Step 6: Final answer
    x = 80,804.78

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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.