Home / 134,943.88-186,221.64-74,518.34

Finding the Fourth Proportional to 134,943.88, 186,221.64 and 74,518.34

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Solution

The fourth proportional to 134,943.88, 186,221.64 and 74,518.34 is: 102,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,943.88 : 186,221.64 = 74,518.34 : x
  2. Step 2: Convert to fraction form
    134,943.88/186,221.64 = 74,518.34/x
  3. Step 3: Cross multiply
    134,943.88x = 186,221.64 × 74,518.34
  4. Step 4: Simplify right side
    134,943.88x = 13,876,927,484.88
  5. Step 5: Solve for x
    x = 13,876,927,484.88/134,943.88
  6. Step 6: Final answer
    x = 102,834.80

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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.