Home / 130,015.54-178,732.60-111,799.55

Finding the Fourth Proportional to 130,015.54, 178,732.60 and 111,799.55

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Solution

The fourth proportional to 130,015.54, 178,732.60 and 111,799.55 is: 153,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,015.54 : 178,732.60 = 111,799.55 : x
  2. Step 2: Convert to fraction form
    130,015.54/178,732.60 = 111,799.55/x
  3. Step 3: Cross multiply
    130,015.54x = 178,732.60 × 111,799.55
  4. Step 4: Simplify right side
    130,015.54x = 19,982,224,417.66
  5. Step 5: Solve for x
    x = 19,982,224,417.66/130,015.54
  6. Step 6: Final answer
    x = 153,691.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.