Home / 210,047.10-315,090.27-83,656.86

Finding the Fourth Proportional to 210,047.10, 315,090.27 and 83,656.86

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Solution

The fourth proportional to 210,047.10, 315,090.27 and 83,656.86 is: 125,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,047.10 : 315,090.27 = 83,656.86 : x
  2. Step 2: Convert to fraction form
    210,047.10/315,090.27 = 83,656.86/x
  3. Step 3: Cross multiply
    210,047.10x = 315,090.27 × 83,656.86
  4. Step 4: Simplify right side
    210,047.10x = 26,359,462,604.75
  5. Step 5: Solve for x
    x = 26,359,462,604.75/210,047.10
  6. Step 6: Final answer
    x = 125,493.10

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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.