Home / 197,106.20-295,659.30-78,862.40

Finding the Fourth Proportional to 197,106.20, 295,659.30 and 78,862.40

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Solution

The fourth proportional to 197,106.20, 295,659.30 and 78,862.40 is: 118,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,106.20 : 295,659.30 = 78,862.40 : x
  2. Step 2: Convert to fraction form
    197,106.20/295,659.30 = 78,862.40/x
  3. Step 3: Cross multiply
    197,106.20x = 295,659.30 × 78,862.40
  4. Step 4: Simplify right side
    197,106.20x = 23,316,401,980.32
  5. Step 5: Solve for x
    x = 23,316,401,980.32/197,106.20
  6. Step 6: Final answer
    x = 118,293.60

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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.