Home / 111,633.63-154,064.12-61,342.35

Finding the Fourth Proportional to 111,633.63, 154,064.12 and 61,342.35

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Solution

The fourth proportional to 111,633.63, 154,064.12 and 61,342.35 is: 84,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,633.63 : 154,064.12 = 61,342.35 : x
  2. Step 2: Convert to fraction form
    111,633.63/154,064.12 = 61,342.35/x
  3. Step 3: Cross multiply
    111,633.63x = 154,064.12 × 61,342.35
  4. Step 4: Simplify right side
    111,633.63x = 9,450,655,171.48
  5. Step 5: Solve for x
    x = 9,450,655,171.48/111,633.63
  6. Step 6: Final answer
    x = 84,657.78

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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.