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Finding the Fourth Proportional to 101,345.44, 139,905.60 and 67,410.40

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Solution

The fourth proportional to 101,345.44, 139,905.60 and 67,410.40 is: 93,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,345.44 : 139,905.60 = 67,410.40 : x
  2. Step 2: Convert to fraction form
    101,345.44/139,905.60 = 67,410.40/x
  3. Step 3: Cross multiply
    101,345.44x = 139,905.60 × 67,410.40
  4. Step 4: Simplify right side
    101,345.44x = 9,431,092,458.24
  5. Step 5: Solve for x
    x = 9,431,092,458.24/101,345.44
  6. Step 6: Final answer
    x = 93,058.87

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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.