Home / 166,421.42-249,694.49-86,409.44

Finding the Fourth Proportional to 166,421.42, 249,694.49 and 86,409.44

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Solution

The fourth proportional to 166,421.42, 249,694.49 and 86,409.44 is: 129,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,421.42 : 249,694.49 = 86,409.44 : x
  2. Step 2: Convert to fraction form
    166,421.42/249,694.49 = 86,409.44/x
  3. Step 3: Cross multiply
    166,421.42x = 249,694.49 × 86,409.44
  4. Step 4: Simplify right side
    166,421.42x = 21,575,961,051.99
  5. Step 5: Solve for x
    x = 21,575,961,051.99/166,421.42
  6. Step 6: Final answer
    x = 129,646.54

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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.