Home / 104,303.60-143,938.68-56,556.80

Finding the Fourth Proportional to 104,303.60, 143,938.68 and 56,556.80

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Solution

The fourth proportional to 104,303.60, 143,938.68 and 56,556.80 is: 78,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,303.60 : 143,938.68 = 56,556.80 : x
  2. Step 2: Convert to fraction form
    104,303.60/143,938.68 = 56,556.80/x
  3. Step 3: Cross multiply
    104,303.60x = 143,938.68 × 56,556.80
  4. Step 4: Simplify right side
    104,303.60x = 8,140,711,137.02
  5. Step 5: Solve for x
    x = 8,140,711,137.02/104,303.60
  6. Step 6: Final answer
    x = 78,048.23

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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.