Home / 219,421.45-302,799.87-118,819.45

Finding the Fourth Proportional to 219,421.45, 302,799.87 and 118,819.45

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Solution

The fourth proportional to 219,421.45, 302,799.87 and 118,819.45 is: 163,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,421.45 : 302,799.87 = 118,819.45 : x
  2. Step 2: Convert to fraction form
    219,421.45/302,799.87 = 118,819.45/x
  3. Step 3: Cross multiply
    219,421.45x = 302,799.87 × 118,819.45
  4. Step 4: Simplify right side
    219,421.45x = 35,978,514,013.47
  5. Step 5: Solve for x
    x = 35,978,514,013.47/219,421.45
  6. Step 6: Final answer
    x = 163,969.90

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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.