Home / 111,535.02-153,908.10-66,205.26

Finding the Fourth Proportional to 111,535.02, 153,908.10 and 66,205.26

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Solution

The fourth proportional to 111,535.02, 153,908.10 and 66,205.26 is: 91,357.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,535.02 : 153,908.10 = 66,205.26 : x
  2. Step 2: Convert to fraction form
    111,535.02/153,908.10 = 66,205.26/x
  3. Step 3: Cross multiply
    111,535.02x = 153,908.10 × 66,205.26
  4. Step 4: Simplify right side
    111,535.02x = 10,189,525,776.61
  5. Step 5: Solve for x
    x = 10,189,525,776.61/111,535.02
  6. Step 6: Final answer
    x = 91,357.19

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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.