Home / 86,150.21-129,210.73-23,806.13

Finding the Fourth Proportional to 86,150.21, 129,210.73 and 23,806.13

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Solution

The fourth proportional to 86,150.21, 129,210.73 and 23,806.13 is: 35,705.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,150.21 : 129,210.73 = 23,806.13 : x
  2. Step 2: Convert to fraction form
    86,150.21/129,210.73 = 23,806.13/x
  3. Step 3: Cross multiply
    86,150.21x = 129,210.73 × 23,806.13
  4. Step 4: Simplify right side
    86,150.21x = 3,076,006,730.21
  5. Step 5: Solve for x
    x = 3,076,006,730.21/86,150.21
  6. Step 6: Final answer
    x = 35,705.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.