Home / 103,209.86-142,427.75-57,887.93

Finding the Fourth Proportional to 103,209.86, 142,427.75 and 57,887.93

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Solution

The fourth proportional to 103,209.86, 142,427.75 and 57,887.93 is: 79,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,209.86 : 142,427.75 = 57,887.93 : x
  2. Step 2: Convert to fraction form
    103,209.86/142,427.75 = 57,887.93/x
  3. Step 3: Cross multiply
    103,209.86x = 142,427.75 × 57,887.93
  4. Step 4: Simplify right side
    103,209.86x = 8,244,847,622.06
  5. Step 5: Solve for x
    x = 8,244,847,622.06/103,209.86
  6. Step 6: Final answer
    x = 79,884.30

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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.