Home / 111,236.87-153,507.04-61,509.58

Finding the Fourth Proportional to 111,236.87, 153,507.04 and 61,509.58

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Solution

The fourth proportional to 111,236.87, 153,507.04 and 61,509.58 is: 84,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,236.87 : 153,507.04 = 61,509.58 : x
  2. Step 2: Convert to fraction form
    111,236.87/153,507.04 = 61,509.58/x
  3. Step 3: Cross multiply
    111,236.87x = 153,507.04 × 61,509.58
  4. Step 4: Simplify right side
    111,236.87x = 9,442,153,019.90
  5. Step 5: Solve for x
    x = 9,442,153,019.90/111,236.87
  6. Step 6: Final answer
    x = 84,883.30

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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.