Home / 149,264.64-205,634.84-103,864.55

Finding the Fourth Proportional to 149,264.64, 205,634.84 and 103,864.55

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Solution

The fourth proportional to 149,264.64, 205,634.84 and 103,864.55 is: 143,089.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,264.64 : 205,634.84 = 103,864.55 : x
  2. Step 2: Convert to fraction form
    149,264.64/205,634.84 = 103,864.55/x
  3. Step 3: Cross multiply
    149,264.64x = 205,634.84 × 103,864.55
  4. Step 4: Simplify right side
    149,264.64x = 21,358,168,573.43
  5. Step 5: Solve for x
    x = 21,358,168,573.43/149,264.64
  6. Step 6: Final answer
    x = 143,089.27

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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.