Home / 124,814.40-172,273.80-71,112.60

Finding the Fourth Proportional to 124,814.40, 172,273.80 and 71,112.60

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Solution

The fourth proportional to 124,814.40, 172,273.80 and 71,112.60 is: 98,152.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,814.40 : 172,273.80 = 71,112.60 : x
  2. Step 2: Convert to fraction form
    124,814.40/172,273.80 = 71,112.60/x
  3. Step 3: Cross multiply
    124,814.40x = 172,273.80 × 71,112.60
  4. Step 4: Simplify right side
    124,814.40x = 12,250,837,829.88
  5. Step 5: Solve for x
    x = 12,250,837,829.88/124,814.40
  6. Step 6: Final answer
    x = 98,152.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.