Home / 118,922.31-178,258.59-40,009.14

Finding the Fourth Proportional to 118,922.31, 178,258.59 and 40,009.14

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Solution

The fourth proportional to 118,922.31, 178,258.59 and 40,009.14 is: 59,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,922.31 : 178,258.59 = 40,009.14 : x
  2. Step 2: Convert to fraction form
    118,922.31/178,258.59 = 40,009.14/x
  3. Step 3: Cross multiply
    118,922.31x = 178,258.59 × 40,009.14
  4. Step 4: Simplify right side
    118,922.31x = 7,131,972,883.51
  5. Step 5: Solve for x
    x = 7,131,972,883.51/118,922.31
  6. Step 6: Final answer
    x = 59,971.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.