Home / 108,821.64-150,052.58-70,530.78

Finding the Fourth Proportional to 108,821.64, 150,052.58 and 70,530.78

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Solution

The fourth proportional to 108,821.64, 150,052.58 and 70,530.78 is: 97,253.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,821.64 : 150,052.58 = 70,530.78 : x
  2. Step 2: Convert to fraction form
    108,821.64/150,052.58 = 70,530.78/x
  3. Step 3: Cross multiply
    108,821.64x = 150,052.58 × 70,530.78
  4. Step 4: Simplify right side
    108,821.64x = 10,583,325,508.41
  5. Step 5: Solve for x
    x = 10,583,325,508.41/108,821.64
  6. Step 6: Final answer
    x = 97,253.87

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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.