Home / 111,822.12-154,314.99-61,521.12

Finding the Fourth Proportional to 111,822.12, 154,314.99 and 61,521.12

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Solution

The fourth proportional to 111,822.12, 154,314.99 and 61,521.12 is: 84,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,822.12 : 154,314.99 = 61,521.12 : x
  2. Step 2: Convert to fraction form
    111,822.12/154,314.99 = 61,521.12/x
  3. Step 3: Cross multiply
    111,822.12x = 154,314.99 × 61,521.12
  4. Step 4: Simplify right side
    111,822.12x = 9,493,631,017.59
  5. Step 5: Solve for x
    x = 9,493,631,017.59/111,822.12
  6. Step 6: Final answer
    x = 84,899.40

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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.