Home / 210,187.81-315,272.89-97,829.38

Finding the Fourth Proportional to 210,187.81, 315,272.89 and 97,829.38

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Solution

The fourth proportional to 210,187.81, 315,272.89 and 97,829.38 is: 146,739.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,187.81 : 315,272.89 = 97,829.38 : x
  2. Step 2: Convert to fraction form
    210,187.81/315,272.89 = 97,829.38/x
  3. Step 3: Cross multiply
    210,187.81x = 315,272.89 × 97,829.38
  4. Step 4: Simplify right side
    210,187.81x = 30,842,951,359.51
  5. Step 5: Solve for x
    x = 30,842,951,359.51/210,187.81
  6. Step 6: Final answer
    x = 146,739.96

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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.