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Finding the Fourth Proportional to 162,430.51, 243,662.47 and 61,313.73

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Solution

The fourth proportional to 162,430.51, 243,662.47 and 61,313.73 is: 91,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,430.51 : 243,662.47 = 61,313.73 : x
  2. Step 2: Convert to fraction form
    162,430.51/243,662.47 = 61,313.73/x
  3. Step 3: Cross multiply
    162,430.51x = 243,662.47 × 61,313.73
  4. Step 4: Simplify right side
    162,430.51x = 14,939,854,896.71
  5. Step 5: Solve for x
    x = 14,939,854,896.71/162,430.51
  6. Step 6: Final answer
    x = 91,976.90

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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.