Home / 210,108.82-315,165.96-69,867.44

Finding the Fourth Proportional to 210,108.82, 315,165.96 and 69,867.44

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Solution

The fourth proportional to 210,108.82, 315,165.96 and 69,867.44 is: 104,802.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,108.82 : 315,165.96 = 69,867.44 : x
  2. Step 2: Convert to fraction form
    210,108.82/315,165.96 = 69,867.44/x
  3. Step 3: Cross multiply
    210,108.82x = 315,165.96 × 69,867.44
  4. Step 4: Simplify right side
    210,108.82x = 22,019,838,800.34
  5. Step 5: Solve for x
    x = 22,019,838,800.34/210,108.82
  6. Step 6: Final answer
    x = 104,802.07

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1.5x scale

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.