Home / 130,015.80-195,023.70-51,089.40

Finding the Fourth Proportional to 130,015.80, 195,023.70 and 51,089.40

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Solution

The fourth proportional to 130,015.80, 195,023.70 and 51,089.40 is: 76,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,015.80 : 195,023.70 = 51,089.40 : x
  2. Step 2: Convert to fraction form
    130,015.80/195,023.70 = 51,089.40/x
  3. Step 3: Cross multiply
    130,015.80x = 195,023.70 × 51,089.40
  4. Step 4: Simplify right side
    130,015.80x = 9,963,643,818.78
  5. Step 5: Solve for x
    x = 9,963,643,818.78/130,015.80
  6. Step 6: Final answer
    x = 76,634.10

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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.