Home / 127,651.10-176,157-70,289.24

Finding the Fourth Proportional to 127,651.10, 176,157 and 70,289.24

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Solution

The fourth proportional to 127,651.10, 176,157 and 70,289.24 is: 96,998.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,651.10 : 176,157 = 70,289.24 : x
  2. Step 2: Convert to fraction form
    127,651.10/176,157 = 70,289.24/x
  3. Step 3: Cross multiply
    127,651.10x = 176,157 × 70,289.24
  4. Step 4: Simplify right side
    127,651.10x = 12,381,940,769.90
  5. Step 5: Solve for x
    x = 12,381,940,769.90/127,651.10
  6. Step 6: Final answer
    x = 96,998.31

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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.