Home / 149,113.32-205,788.24-85,457.04

Finding the Fourth Proportional to 149,113.32, 205,788.24 and 85,457.04

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Solution

The fourth proportional to 149,113.32, 205,788.24 and 85,457.04 is: 117,937.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,113.32 : 205,788.24 = 85,457.04 : x
  2. Step 2: Convert to fraction form
    149,113.32/205,788.24 = 85,457.04/x
  3. Step 3: Cross multiply
    149,113.32x = 205,788.24 × 85,457.04
  4. Step 4: Simplify right side
    149,113.32x = 17,586,053,857.21
  5. Step 5: Solve for x
    x = 17,586,053,857.21/149,113.32
  6. Step 6: Final answer
    x = 117,937.51

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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.