Home / 103,984.44-143,498.54-56,237.78

Finding the Fourth Proportional to 103,984.44, 143,498.54 and 56,237.78

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Solution

The fourth proportional to 103,984.44, 143,498.54 and 56,237.78 is: 77,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,984.44 : 143,498.54 = 56,237.78 : x
  2. Step 2: Convert to fraction form
    103,984.44/143,498.54 = 56,237.78/x
  3. Step 3: Cross multiply
    103,984.44x = 143,498.54 × 56,237.78
  4. Step 4: Simplify right side
    103,984.44x = 8,070,038,324.16
  5. Step 5: Solve for x
    x = 8,070,038,324.16/103,984.44
  6. Step 6: Final answer
    x = 77,608.13

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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.