Home / 208,965.60-313,621.20-96,818.40

Finding the Fourth Proportional to 208,965.60, 313,621.20 and 96,818.40

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Solution

The fourth proportional to 208,965.60, 313,621.20 and 96,818.40 is: 145,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,965.60 : 313,621.20 = 96,818.40 : x
  2. Step 2: Convert to fraction form
    208,965.60/313,621.20 = 96,818.40/x
  3. Step 3: Cross multiply
    208,965.60x = 313,621.20 × 96,818.40
  4. Step 4: Simplify right side
    208,965.60x = 30,364,302,790.08
  5. Step 5: Solve for x
    x = 30,364,302,790.08/208,965.60
  6. Step 6: Final answer
    x = 145,307.66

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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.