Home / 170,622-235,429.20-98,985.60

Finding the Fourth Proportional to 170,622, 235,429.20 and 98,985.60

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Solution

The fourth proportional to 170,622, 235,429.20 and 98,985.60 is: 136,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,622 : 235,429.20 = 98,985.60 : x
  2. Step 2: Convert to fraction form
    170,622/235,429.20 = 98,985.60/x
  3. Step 3: Cross multiply
    170,622x = 235,429.20 × 98,985.60
  4. Step 4: Simplify right side
    170,622x = 23,304,100,619.52
  5. Step 5: Solve for x
    x = 23,304,100,619.52/170,622
  6. Step 6: Final answer
    x = 136,583.21

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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.