Home / 111,693.16-154,137.06-61,395.40

Finding the Fourth Proportional to 111,693.16, 154,137.06 and 61,395.40

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Solution

The fourth proportional to 111,693.16, 154,137.06 and 61,395.40 is: 84,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,693.16 : 154,137.06 = 61,395.40 : x
  2. Step 2: Convert to fraction form
    111,693.16/154,137.06 = 61,395.40/x
  3. Step 3: Cross multiply
    111,693.16x = 154,137.06 × 61,395.40
  4. Step 4: Simplify right side
    111,693.16x = 9,463,306,453.52
  5. Step 5: Solve for x
    x = 9,463,306,453.52/111,693.16
  6. Step 6: Final answer
    x = 84,725.93

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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.