Home / 100,223.03-149,325.44-98,779.61

Finding the Fourth Proportional to 100,223.03, 149,325.44 and 98,779.61

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Solution

The fourth proportional to 100,223.03, 149,325.44 and 98,779.61 is: 147,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,223.03 : 149,325.44 = 98,779.61 : x
  2. Step 2: Convert to fraction form
    100,223.03/149,325.44 = 98,779.61/x
  3. Step 3: Cross multiply
    100,223.03x = 149,325.44 × 98,779.61
  4. Step 4: Simplify right side
    100,223.03x = 14,750,308,226.60
  5. Step 5: Solve for x
    x = 14,750,308,226.60/100,223.03
  6. Step 6: Final answer
    x = 147,174.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.