Home / 130,124.80-195,417.60-100,614.40

Finding the Fourth Proportional to 130,124.80, 195,417.60 and 100,614.40

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Solution

The fourth proportional to 130,124.80, 195,417.60 and 100,614.40 is: 151,099.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,124.80 : 195,417.60 = 100,614.40 : x
  2. Step 2: Convert to fraction form
    130,124.80/195,417.60 = 100,614.40/x
  3. Step 3: Cross multiply
    130,124.80x = 195,417.60 × 100,614.40
  4. Step 4: Simplify right side
    130,124.80x = 19,661,824,573.44
  5. Step 5: Solve for x
    x = 19,661,824,573.44/130,124.80
  6. Step 6: Final answer
    x = 151,099.75

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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.