Home / 130,772.76-196,029.54-78,103.32

Finding the Fourth Proportional to 130,772.76, 196,029.54 and 78,103.32

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Solution

The fourth proportional to 130,772.76, 196,029.54 and 78,103.32 is: 117,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,772.76 : 196,029.54 = 78,103.32 : x
  2. Step 2: Convert to fraction form
    130,772.76/196,029.54 = 78,103.32/x
  3. Step 3: Cross multiply
    130,772.76x = 196,029.54 × 78,103.32
  4. Step 4: Simplify right side
    130,772.76x = 15,310,557,892.07
  5. Step 5: Solve for x
    x = 15,310,557,892.07/130,772.76
  6. Step 6: Final answer
    x = 117,077.58

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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.