Home / 194,457.15-292,013.78-128,191.05

Finding the Fourth Proportional to 194,457.15, 292,013.78 and 128,191.05

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Solution

The fourth proportional to 194,457.15, 292,013.78 and 128,191.05 is: 192,502.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,457.15 : 292,013.78 = 128,191.05 : x
  2. Step 2: Convert to fraction form
    194,457.15/292,013.78 = 128,191.05/x
  3. Step 3: Cross multiply
    194,457.15x = 292,013.78 × 128,191.05
  4. Step 4: Simplify right side
    194,457.15x = 37,433,552,431.71
  5. Step 5: Solve for x
    x = 37,433,552,431.71/194,457.15
  6. Step 6: Final answer
    x = 192,502.83

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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.