Home / 130,944.36-196,502.67-71,821.50

Finding the Fourth Proportional to 130,944.36, 196,502.67 and 71,821.50

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Solution

The fourth proportional to 130,944.36, 196,502.67 and 71,821.50 is: 107,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,944.36 : 196,502.67 = 71,821.50 : x
  2. Step 2: Convert to fraction form
    130,944.36/196,502.67 = 71,821.50/x
  3. Step 3: Cross multiply
    130,944.36x = 196,502.67 × 71,821.50
  4. Step 4: Simplify right side
    130,944.36x = 14,113,116,513.41
  5. Step 5: Solve for x
    x = 14,113,116,513.41/130,944.36
  6. Step 6: Final answer
    x = 107,779.49

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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.