Home / 118,144.31-163,010.21-75,760.25

Finding the Fourth Proportional to 118,144.31, 163,010.21 and 75,760.25

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Solution

The fourth proportional to 118,144.31, 163,010.21 and 75,760.25 is: 104,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,144.31 : 163,010.21 = 75,760.25 : x
  2. Step 2: Convert to fraction form
    118,144.31/163,010.21 = 75,760.25/x
  3. Step 3: Cross multiply
    118,144.31x = 163,010.21 × 75,760.25
  4. Step 4: Simplify right side
    118,144.31x = 12,349,693,068.30
  5. Step 5: Solve for x
    x = 12,349,693,068.30/118,144.31
  6. Step 6: Final answer
    x = 104,530.58

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1.5x scale

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.