Home / 105,074.76-145,003.65-57,329.10

Finding the Fourth Proportional to 105,074.76, 145,003.65 and 57,329.10

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Solution

The fourth proportional to 105,074.76, 145,003.65 and 57,329.10 is: 79,114.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,074.76 : 145,003.65 = 57,329.10 : x
  2. Step 2: Convert to fraction form
    105,074.76/145,003.65 = 57,329.10/x
  3. Step 3: Cross multiply
    105,074.76x = 145,003.65 × 57,329.10
  4. Step 4: Simplify right side
    105,074.76x = 8,312,928,751.22
  5. Step 5: Solve for x
    x = 8,312,928,751.22/105,074.76
  6. Step 6: Final answer
    x = 79,114.42

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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.