Home / 194,715.20-292,072.80-76,390.40

Finding the Fourth Proportional to 194,715.20, 292,072.80 and 76,390.40

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Solution

The fourth proportional to 194,715.20, 292,072.80 and 76,390.40 is: 114,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,715.20 : 292,072.80 = 76,390.40 : x
  2. Step 2: Convert to fraction form
    194,715.20/292,072.80 = 76,390.40/x
  3. Step 3: Cross multiply
    194,715.20x = 292,072.80 × 76,390.40
  4. Step 4: Simplify right side
    194,715.20x = 22,311,558,021.12
  5. Step 5: Solve for x
    x = 22,311,558,021.12/194,715.20
  6. Step 6: Final answer
    x = 114,585.60

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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.