Home / 118,929.19-164,208.38-76,561.52

Finding the Fourth Proportional to 118,929.19, 164,208.38 and 76,561.52

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Solution

The fourth proportional to 118,929.19, 164,208.38 and 76,561.52 is: 105,710.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,929.19 : 164,208.38 = 76,561.52 : x
  2. Step 2: Convert to fraction form
    118,929.19/164,208.38 = 76,561.52/x
  3. Step 3: Cross multiply
    118,929.19x = 164,208.38 × 76,561.52
  4. Step 4: Simplify right side
    118,929.19x = 12,572,043,169.54
  5. Step 5: Solve for x
    x = 12,572,043,169.54/118,929.19
  6. Step 6: Final answer
    x = 105,710.32

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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.