Home / 108,216.96-149,328.32-74,254.56

Finding the Fourth Proportional to 108,216.96, 149,328.32 and 74,254.56

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Solution

The fourth proportional to 108,216.96, 149,328.32 and 74,254.56 is: 102,463.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,216.96 : 149,328.32 = 74,254.56 : x
  2. Step 2: Convert to fraction form
    108,216.96/149,328.32 = 74,254.56/x
  3. Step 3: Cross multiply
    108,216.96x = 149,328.32 × 74,254.56
  4. Step 4: Simplify right side
    108,216.96x = 11,088,308,697.14
  5. Step 5: Solve for x
    x = 11,088,308,697.14/108,216.96
  6. Step 6: Final answer
    x = 102,463.69

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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.