Home / 103,037.80-154,556.70-43,875.40

Finding the Fourth Proportional to 103,037.80, 154,556.70 and 43,875.40

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Solution

The fourth proportional to 103,037.80, 154,556.70 and 43,875.40 is: 65,813.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,037.80 : 154,556.70 = 43,875.40 : x
  2. Step 2: Convert to fraction form
    103,037.80/154,556.70 = 43,875.40/x
  3. Step 3: Cross multiply
    103,037.80x = 154,556.70 × 43,875.40
  4. Step 4: Simplify right side
    103,037.80x = 6,781,237,035.18
  5. Step 5: Solve for x
    x = 6,781,237,035.18/103,037.80
  6. Step 6: Final answer
    x = 65,813.10

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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.