Home / 213,071.76-294,055.65-122,459.36

Finding the Fourth Proportional to 213,071.76, 294,055.65 and 122,459.36

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Solution

The fourth proportional to 213,071.76, 294,055.65 and 122,459.36 is: 169,003.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,071.76 : 294,055.65 = 122,459.36 : x
  2. Step 2: Convert to fraction form
    213,071.76/294,055.65 = 122,459.36/x
  3. Step 3: Cross multiply
    213,071.76x = 294,055.65 × 122,459.36
  4. Step 4: Simplify right side
    213,071.76x = 36,009,865,233.11
  5. Step 5: Solve for x
    x = 36,009,865,233.11/213,071.76
  6. Step 6: Final answer
    x = 169,003.46

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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.