Home / 108,781.36-150,120.86-61,038.24

Finding the Fourth Proportional to 108,781.36, 150,120.86 and 61,038.24

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Solution

The fourth proportional to 108,781.36, 150,120.86 and 61,038.24 is: 84,234.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,781.36 : 150,120.86 = 61,038.24 : x
  2. Step 2: Convert to fraction form
    108,781.36/150,120.86 = 61,038.24/x
  3. Step 3: Cross multiply
    108,781.36x = 150,120.86 × 61,038.24
  4. Step 4: Simplify right side
    108,781.36x = 9,163,113,081.69
  5. Step 5: Solve for x
    x = 9,163,113,081.69/108,781.36
  6. Step 6: Final answer
    x = 84,234.22

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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.