Home / 145,828.79-219,531.01-131,164.58

Finding the Fourth Proportional to 145,828.79, 219,531.01 and 131,164.58

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Solution

The fourth proportional to 145,828.79, 219,531.01 and 131,164.58 is: 197,455.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,828.79 : 219,531.01 = 131,164.58 : x
  2. Step 2: Convert to fraction form
    145,828.79/219,531.01 = 131,164.58/x
  3. Step 3: Cross multiply
    145,828.79x = 219,531.01 × 131,164.58
  4. Step 4: Simplify right side
    145,828.79x = 28,794,691,625.97
  5. Step 5: Solve for x
    x = 28,794,691,625.97/145,828.79
  6. Step 6: Final answer
    x = 197,455.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.