Home / 138,922.02-208,415.97-45,427.50

Finding the Fourth Proportional to 138,922.02, 208,415.97 and 45,427.50

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Solution

The fourth proportional to 138,922.02, 208,415.97 and 45,427.50 is: 68,152.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,922.02 : 208,415.97 = 45,427.50 : x
  2. Step 2: Convert to fraction form
    138,922.02/208,415.97 = 45,427.50/x
  3. Step 3: Cross multiply
    138,922.02x = 208,415.97 × 45,427.50
  4. Step 4: Simplify right side
    138,922.02x = 9,467,816,477.18
  5. Step 5: Solve for x
    x = 9,467,816,477.18/138,922.02
  6. Step 6: Final answer
    x = 68,152.02

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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.