Home / 210,150.20-315,113.90-91,683.14

Finding the Fourth Proportional to 210,150.20, 315,113.90 and 91,683.14

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Solution

The fourth proportional to 210,150.20, 315,113.90 and 91,683.14 is: 137,476.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,150.20 : 315,113.90 = 91,683.14 : x
  2. Step 2: Convert to fraction form
    210,150.20/315,113.90 = 91,683.14/x
  3. Step 3: Cross multiply
    210,150.20x = 315,113.90 × 91,683.14
  4. Step 4: Simplify right side
    210,150.20x = 28,890,631,548.18
  5. Step 5: Solve for x
    x = 28,890,631,548.18/210,150.20
  6. Step 6: Final answer
    x = 137,476.11

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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.