Home / 105,763.10-158,500.47-53,208.68

Finding the Fourth Proportional to 105,763.10, 158,500.47 and 53,208.68

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Solution

The fourth proportional to 105,763.10, 158,500.47 and 53,208.68 is: 79,740.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,763.10 : 158,500.47 = 53,208.68 : x
  2. Step 2: Convert to fraction form
    105,763.10/158,500.47 = 53,208.68/x
  3. Step 3: Cross multiply
    105,763.10x = 158,500.47 × 53,208.68
  4. Step 4: Simplify right side
    105,763.10x = 8,433,600,788.08
  5. Step 5: Solve for x
    x = 8,433,600,788.08/105,763.10
  6. Step 6: Final answer
    x = 79,740.48

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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.