Home / 118,970.05-164,215.42-76,528.58

Finding the Fourth Proportional to 118,970.05, 164,215.42 and 76,528.58

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Solution

The fourth proportional to 118,970.05, 164,215.42 and 76,528.58 is: 105,633.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,970.05 : 164,215.42 = 76,528.58 : x
  2. Step 2: Convert to fraction form
    118,970.05/164,215.42 = 76,528.58/x
  3. Step 3: Cross multiply
    118,970.05x = 164,215.42 × 76,528.58
  4. Step 4: Simplify right side
    118,970.05x = 12,567,172,906.70
  5. Step 5: Solve for x
    x = 12,567,172,906.70/118,970.05
  6. Step 6: Final answer
    x = 105,633.08

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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.