Home / 197,127.40-272,064-112,252.36

Finding the Fourth Proportional to 197,127.40, 272,064 and 112,252.36

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Solution

The fourth proportional to 197,127.40, 272,064 and 112,252.36 is: 154,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,127.40 : 272,064 = 112,252.36 : x
  2. Step 2: Convert to fraction form
    197,127.40/272,064 = 112,252.36/x
  3. Step 3: Cross multiply
    197,127.40x = 272,064 × 112,252.36
  4. Step 4: Simplify right side
    197,127.40x = 30,539,826,071.04
  5. Step 5: Solve for x
    x = 30,539,826,071.04/197,127.40
  6. Step 6: Final answer
    x = 154,924.31

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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.