Home / 113,559.80-170,339.70-100,875.20

Finding the Fourth Proportional to 113,559.80, 170,339.70 and 100,875.20

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Solution

The fourth proportional to 113,559.80, 170,339.70 and 100,875.20 is: 151,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,559.80 : 170,339.70 = 100,875.20 : x
  2. Step 2: Convert to fraction form
    113,559.80/170,339.70 = 100,875.20/x
  3. Step 3: Cross multiply
    113,559.80x = 170,339.70 × 100,875.20
  4. Step 4: Simplify right side
    113,559.80x = 17,183,051,305.44
  5. Step 5: Solve for x
    x = 17,183,051,305.44/113,559.80
  6. Step 6: Final answer
    x = 151,312.80

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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.