Home / 149,130.64-205,803.71-84,604.20

Finding the Fourth Proportional to 149,130.64, 205,803.71 and 84,604.20

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Solution

The fourth proportional to 149,130.64, 205,803.71 and 84,604.20 is: 116,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,130.64 : 205,803.71 = 84,604.20 : x
  2. Step 2: Convert to fraction form
    149,130.64/205,803.71 = 84,604.20/x
  3. Step 3: Cross multiply
    149,130.64x = 205,803.71 × 84,604.20
  4. Step 4: Simplify right side
    149,130.64x = 17,411,858,241.58
  5. Step 5: Solve for x
    x = 17,411,858,241.58/149,130.64
  6. Step 6: Final answer
    x = 116,755.74

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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.