Home / 211,181.16-316,738.70-69,025.35

Finding the Fourth Proportional to 211,181.16, 316,738.70 and 69,025.35

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Solution

The fourth proportional to 211,181.16, 316,738.70 and 69,025.35 is: 103,527.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,181.16 : 316,738.70 = 69,025.35 : x
  2. Step 2: Convert to fraction form
    211,181.16/316,738.70 = 69,025.35/x
  3. Step 3: Cross multiply
    211,181.16x = 316,738.70 × 69,025.35
  4. Step 4: Simplify right side
    211,181.16x = 21,862,999,280.92
  5. Step 5: Solve for x
    x = 21,862,999,280.92/211,181.16
  6. Step 6: Final answer
    x = 103,527.22

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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.