Home / 111,749.02-154,200.72-63,999.52

Finding the Fourth Proportional to 111,749.02, 154,200.72 and 63,999.52

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Solution

The fourth proportional to 111,749.02, 154,200.72 and 63,999.52 is: 88,311.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,749.02 : 154,200.72 = 63,999.52 : x
  2. Step 2: Convert to fraction form
    111,749.02/154,200.72 = 63,999.52/x
  3. Step 3: Cross multiply
    111,749.02x = 154,200.72 × 63,999.52
  4. Step 4: Simplify right side
    111,749.02x = 9,868,772,063.65
  5. Step 5: Solve for x
    x = 9,868,772,063.65/111,749.02
  6. Step 6: Final answer
    x = 88,311.93

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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.