Home / 108,434.79-149,638.68-60,688.53

Finding the Fourth Proportional to 108,434.79, 149,638.68 and 60,688.53

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Solution

The fourth proportional to 108,434.79, 149,638.68 and 60,688.53 is: 83,749.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,434.79 : 149,638.68 = 60,688.53 : x
  2. Step 2: Convert to fraction form
    108,434.79/149,638.68 = 60,688.53/x
  3. Step 3: Cross multiply
    108,434.79x = 149,638.68 × 60,688.53
  4. Step 4: Simplify right side
    108,434.79x = 9,081,351,520.34
  5. Step 5: Solve for x
    x = 9,081,351,520.34/108,434.79
  6. Step 6: Final answer
    x = 83,749.43

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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.