Home / 108,435.73-149,639.64-60,688.93

Finding the Fourth Proportional to 108,435.73, 149,639.64 and 60,688.93

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Solution

The fourth proportional to 108,435.73, 149,639.64 and 60,688.93 is: 83,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,435.73 : 149,639.64 = 60,688.93 : x
  2. Step 2: Convert to fraction form
    108,435.73/149,639.64 = 60,688.93/x
  3. Step 3: Cross multiply
    108,435.73x = 149,639.64 × 60,688.93
  4. Step 4: Simplify right side
    108,435.73x = 9,081,469,637.19
  5. Step 5: Solve for x
    x = 9,081,469,637.19/108,435.73
  6. Step 6: Final answer
    x = 83,749.79

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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.