Home / 104,362.05-156,262.61-85,865.30

Finding the Fourth Proportional to 104,362.05, 156,262.61 and 85,865.30

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Solution

The fourth proportional to 104,362.05, 156,262.61 and 85,865.30 is: 128,567.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,362.05 : 156,262.61 = 85,865.30 : x
  2. Step 2: Convert to fraction form
    104,362.05/156,262.61 = 85,865.30/x
  3. Step 3: Cross multiply
    104,362.05x = 156,262.61 × 85,865.30
  4. Step 4: Simplify right side
    104,362.05x = 13,417,534,675.79
  5. Step 5: Solve for x
    x = 13,417,534,675.79/104,362.05
  6. Step 6: Final answer
    x = 128,567.18

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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.