Home / 104,029.10-156,043.65-86,518.70

Finding the Fourth Proportional to 104,029.10, 156,043.65 and 86,518.70

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Solution

The fourth proportional to 104,029.10, 156,043.65 and 86,518.70 is: 129,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,029.10 : 156,043.65 = 86,518.70 : x
  2. Step 2: Convert to fraction form
    104,029.10/156,043.65 = 86,518.70/x
  3. Step 3: Cross multiply
    104,029.10x = 156,043.65 × 86,518.70
  4. Step 4: Simplify right side
    104,029.10x = 13,500,693,741.26
  5. Step 5: Solve for x
    x = 13,500,693,741.26/104,029.10
  6. Step 6: Final answer
    x = 129,778.05

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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.