Home / 125,134.48-172,688.37-71,418.41

Finding the Fourth Proportional to 125,134.48, 172,688.37 and 71,418.41

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Solution

The fourth proportional to 125,134.48, 172,688.37 and 71,418.41 is: 98,559.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,134.48 : 172,688.37 = 71,418.41 : x
  2. Step 2: Convert to fraction form
    125,134.48/172,688.37 = 71,418.41/x
  3. Step 3: Cross multiply
    125,134.48x = 172,688.37 × 71,418.41
  4. Step 4: Simplify right side
    125,134.48x = 12,333,128,453.80
  5. Step 5: Solve for x
    x = 12,333,128,453.80/125,134.48
  6. Step 6: Final answer
    x = 98,559.00

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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.