Home / 108,505.16-149,749.91-60,749.28

Finding the Fourth Proportional to 108,505.16, 149,749.91 and 60,749.28

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Solution

The fourth proportional to 108,505.16, 149,749.91 and 60,749.28 is: 83,841.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,505.16 : 149,749.91 = 60,749.28 : x
  2. Step 2: Convert to fraction form
    108,505.16/149,749.91 = 60,749.28/x
  3. Step 3: Cross multiply
    108,505.16x = 149,749.91 × 60,749.28
  4. Step 4: Simplify right side
    108,505.16x = 9,097,198,908.82
  5. Step 5: Solve for x
    x = 9,097,198,908.82/108,505.16
  6. Step 6: Final answer
    x = 83,841.17

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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.