Home / 168,848.50-253,360.23-85,742.50

Finding the Fourth Proportional to 168,848.50, 253,360.23 and 85,742.50

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Solution

The fourth proportional to 168,848.50, 253,360.23 and 85,742.50 is: 128,658.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,848.50 : 253,360.23 = 85,742.50 : x
  2. Step 2: Convert to fraction form
    168,848.50/253,360.23 = 85,742.50/x
  3. Step 3: Cross multiply
    168,848.50x = 253,360.23 × 85,742.50
  4. Step 4: Simplify right side
    168,848.50x = 21,723,739,520.78
  5. Step 5: Solve for x
    x = 21,723,739,520.78/168,848.50
  6. Step 6: Final answer
    x = 128,658.17

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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.