Home / 111,004.02-153,083.30-72,749.64

Finding the Fourth Proportional to 111,004.02, 153,083.30 and 72,749.64

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Solution

The fourth proportional to 111,004.02, 153,083.30 and 72,749.64 is: 100,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,004.02 : 153,083.30 = 72,749.64 : x
  2. Step 2: Convert to fraction form
    111,004.02/153,083.30 = 72,749.64/x
  3. Step 3: Cross multiply
    111,004.02x = 153,083.30 × 72,749.64
  4. Step 4: Simplify right side
    111,004.02x = 11,136,754,965.01
  5. Step 5: Solve for x
    x = 11,136,754,965.01/111,004.02
  6. Step 6: Final answer
    x = 100,327.49

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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.