Home / 104,445.20-144,133.92-56,698.16

Finding the Fourth Proportional to 104,445.20, 144,133.92 and 56,698.16

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Solution

The fourth proportional to 104,445.20, 144,133.92 and 56,698.16 is: 78,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,445.20 : 144,133.92 = 56,698.16 : x
  2. Step 2: Convert to fraction form
    104,445.20/144,133.92 = 56,698.16/x
  3. Step 3: Cross multiply
    104,445.20x = 144,133.92 × 56,698.16
  4. Step 4: Simplify right side
    104,445.20x = 8,172,128,057.59
  5. Step 5: Solve for x
    x = 8,172,128,057.59/104,445.20
  6. Step 6: Final answer
    x = 78,243.21

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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.