Home / 142,714.79-213,917.45-71,465.66

Finding the Fourth Proportional to 142,714.79, 213,917.45 and 71,465.66

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Solution

The fourth proportional to 142,714.79, 213,917.45 and 71,465.66 is: 107,121.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,714.79 : 213,917.45 = 71,465.66 : x
  2. Step 2: Convert to fraction form
    142,714.79/213,917.45 = 71,465.66/x
  3. Step 3: Cross multiply
    142,714.79x = 213,917.45 × 71,465.66
  4. Step 4: Simplify right side
    142,714.79x = 15,287,751,927.23
  5. Step 5: Solve for x
    x = 15,287,751,927.23/142,714.79
  6. Step 6: Final answer
    x = 107,121.00

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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.