Home / 100,014.40-149,997.60-57,803.20

Finding the Fourth Proportional to 100,014.40, 149,997.60 and 57,803.20

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Solution

The fourth proportional to 100,014.40, 149,997.60 and 57,803.20 is: 86,690.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,014.40 : 149,997.60 = 57,803.20 : x
  2. Step 2: Convert to fraction form
    100,014.40/149,997.60 = 57,803.20/x
  3. Step 3: Cross multiply
    100,014.40x = 149,997.60 × 57,803.20
  4. Step 4: Simplify right side
    100,014.40x = 8,670,341,272.32
  5. Step 5: Solve for x
    x = 8,670,341,272.32/100,014.40
  6. Step 6: Final answer
    x = 86,690.93

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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.