Home / 111,219.10-153,552.08-85,677.37

Finding the Fourth Proportional to 111,219.10, 153,552.08 and 85,677.37

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Solution

The fourth proportional to 111,219.10, 153,552.08 and 85,677.37 is: 118,288.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,219.10 : 153,552.08 = 85,677.37 : x
  2. Step 2: Convert to fraction form
    111,219.10/153,552.08 = 85,677.37/x
  3. Step 3: Cross multiply
    111,219.10x = 153,552.08 × 85,677.37
  4. Step 4: Simplify right side
    111,219.10x = 13,155,938,372.43
  5. Step 5: Solve for x
    x = 13,155,938,372.43/111,219.10
  6. Step 6: Final answer
    x = 118,288.48

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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.