Home / 188,820.60-260,551.05-111,291.18

Finding the Fourth Proportional to 188,820.60, 260,551.05 and 111,291.18

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Solution

The fourth proportional to 188,820.60, 260,551.05 and 111,291.18 is: 153,569.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,820.60 : 260,551.05 = 111,291.18 : x
  2. Step 2: Convert to fraction form
    188,820.60/260,551.05 = 111,291.18/x
  3. Step 3: Cross multiply
    188,820.60x = 260,551.05 × 111,291.18
  4. Step 4: Simplify right side
    188,820.60x = 28,997,033,804.74
  5. Step 5: Solve for x
    x = 28,997,033,804.74/188,820.60
  6. Step 6: Final answer
    x = 153,569.23

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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.