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Finding the Fourth Proportional to 181,720.28, 250,774 and 101,146.07

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Solution

The fourth proportional to 181,720.28, 250,774 and 101,146.07 is: 139,581.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,720.28 : 250,774 = 101,146.07 : x
  2. Step 2: Convert to fraction form
    181,720.28/250,774 = 101,146.07/x
  3. Step 3: Cross multiply
    181,720.28x = 250,774 × 101,146.07
  4. Step 4: Simplify right side
    181,720.28x = 25,364,804,558.18
  5. Step 5: Solve for x
    x = 25,364,804,558.18/181,720.28
  6. Step 6: Final answer
    x = 139,581.58

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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.