Home / 141,148.10-194,783.50-76,618.60

Finding the Fourth Proportional to 141,148.10, 194,783.50 and 76,618.60

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Solution

The fourth proportional to 141,148.10, 194,783.50 and 76,618.60 is: 105,733.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,148.10 : 194,783.50 = 76,618.60 : x
  2. Step 2: Convert to fraction form
    141,148.10/194,783.50 = 76,618.60/x
  3. Step 3: Cross multiply
    141,148.10x = 194,783.50 × 76,618.60
  4. Step 4: Simplify right side
    141,148.10x = 14,924,039,073.10
  5. Step 5: Solve for x
    x = 14,924,039,073.10/141,148.10
  6. Step 6: Final answer
    x = 105,733.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.