Home / 149,281.48-223,855.98-79,144.36

Finding the Fourth Proportional to 149,281.48, 223,855.98 and 79,144.36

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Solution

The fourth proportional to 149,281.48, 223,855.98 and 79,144.36 is: 118,681.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,281.48 : 223,855.98 = 79,144.36 : x
  2. Step 2: Convert to fraction form
    149,281.48/223,855.98 = 79,144.36/x
  3. Step 3: Cross multiply
    149,281.48x = 223,855.98 × 79,144.36
  4. Step 4: Simplify right side
    149,281.48x = 17,716,938,269.27
  5. Step 5: Solve for x
    x = 17,716,938,269.27/149,281.48
  6. Step 6: Final answer
    x = 118,681.42

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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.