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Finding the Fourth Proportional to 101,242.48, 139,714.10 and 55,923.60

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Solution

The fourth proportional to 101,242.48, 139,714.10 and 55,923.60 is: 77,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,242.48 : 139,714.10 = 55,923.60 : x
  2. Step 2: Convert to fraction form
    101,242.48/139,714.10 = 55,923.60/x
  3. Step 3: Cross multiply
    101,242.48x = 139,714.10 × 55,923.60
  4. Step 4: Simplify right side
    101,242.48x = 7,813,315,442.76
  5. Step 5: Solve for x
    x = 7,813,315,442.76/101,242.48
  6. Step 6: Final answer
    x = 77,174.28

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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.