Home / 130,106.70-194,977.80-103,498.20

Finding the Fourth Proportional to 130,106.70, 194,977.80 and 103,498.20

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Solution

The fourth proportional to 130,106.70, 194,977.80 and 103,498.20 is: 155,102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,106.70 : 194,977.80 = 103,498.20 : x
  2. Step 2: Convert to fraction form
    130,106.70/194,977.80 = 103,498.20/x
  3. Step 3: Cross multiply
    130,106.70x = 194,977.80 × 103,498.20
  4. Step 4: Simplify right side
    130,106.70x = 20,179,851,339.96
  5. Step 5: Solve for x
    x = 20,179,851,339.96/130,106.70
  6. Step 6: Final answer
    x = 155,102.32

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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.