Home / 156,735.85-235,204.58-86,665.45

Finding the Fourth Proportional to 156,735.85, 235,204.58 and 86,665.45

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Solution

The fourth proportional to 156,735.85, 235,204.58 and 86,665.45 is: 130,053.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,735.85 : 235,204.58 = 86,665.45 : x
  2. Step 2: Convert to fraction form
    156,735.85/235,204.58 = 86,665.45/x
  3. Step 3: Cross multiply
    156,735.85x = 235,204.58 × 86,665.45
  4. Step 4: Simplify right side
    156,735.85x = 20,384,110,767.76
  5. Step 5: Solve for x
    x = 20,384,110,767.76/156,735.85
  6. Step 6: Final answer
    x = 130,053.91

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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.