Home / 96,911.10-145,038.60-85,101.30

Finding the Fourth Proportional to 96,911.10, 145,038.60 and 85,101.30

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Solution

The fourth proportional to 96,911.10, 145,038.60 and 85,101.30 is: 127,363.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,911.10 : 145,038.60 = 85,101.30 : x
  2. Step 2: Convert to fraction form
    96,911.10/145,038.60 = 85,101.30/x
  3. Step 3: Cross multiply
    96,911.10x = 145,038.60 × 85,101.30
  4. Step 4: Simplify right side
    96,911.10x = 12,342,973,410.18
  5. Step 5: Solve for x
    x = 12,342,973,410.18/96,911.10
  6. Step 6: Final answer
    x = 127,363.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.