Home / 142,903.48-197,116.22-91,828.32

Finding the Fourth Proportional to 142,903.48, 197,116.22 and 91,828.32

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Solution

The fourth proportional to 142,903.48, 197,116.22 and 91,828.32 is: 126,664.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,903.48 : 197,116.22 = 91,828.32 : x
  2. Step 2: Convert to fraction form
    142,903.48/197,116.22 = 91,828.32/x
  3. Step 3: Cross multiply
    142,903.48x = 197,116.22 × 91,828.32
  4. Step 4: Simplify right side
    142,903.48x = 18,100,851,327.35
  5. Step 5: Solve for x
    x = 18,100,851,327.35/142,903.48
  6. Step 6: Final answer
    x = 126,664.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.