Home / 108,362.77-149,475.22-71,569.21

Finding the Fourth Proportional to 108,362.77, 149,475.22 and 71,569.21

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Solution

The fourth proportional to 108,362.77, 149,475.22 and 71,569.21 is: 98,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,362.77 : 149,475.22 = 71,569.21 : x
  2. Step 2: Convert to fraction form
    108,362.77/149,475.22 = 71,569.21/x
  3. Step 3: Cross multiply
    108,362.77x = 149,475.22 × 71,569.21
  4. Step 4: Simplify right side
    108,362.77x = 10,697,823,409.98
  5. Step 5: Solve for x
    x = 10,697,823,409.98/108,362.77
  6. Step 6: Final answer
    x = 98,722.31

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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.