Home / 180,855.03-249,582.93-100,285.95

Finding the Fourth Proportional to 180,855.03, 249,582.93 and 100,285.95

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Solution

The fourth proportional to 180,855.03, 249,582.93 and 100,285.95 is: 138,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,855.03 : 249,582.93 = 100,285.95 : x
  2. Step 2: Convert to fraction form
    180,855.03/249,582.93 = 100,285.95/x
  3. Step 3: Cross multiply
    180,855.03x = 249,582.93 × 100,285.95
  4. Step 4: Simplify right side
    180,855.03x = 25,029,661,238.83
  5. Step 5: Solve for x
    x = 25,029,661,238.83/180,855.03
  6. Step 6: Final answer
    x = 138,396.27

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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.