Home / 156,682.10-235,123.95-86,611.70

Finding the Fourth Proportional to 156,682.10, 235,123.95 and 86,611.70

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Solution

The fourth proportional to 156,682.10, 235,123.95 and 86,611.70 is: 129,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,682.10 : 235,123.95 = 86,611.70 : x
  2. Step 2: Convert to fraction form
    156,682.10/235,123.95 = 86,611.70/x
  3. Step 3: Cross multiply
    156,682.10x = 235,123.95 × 86,611.70
  4. Step 4: Simplify right side
    156,682.10x = 20,364,485,020.22
  5. Step 5: Solve for x
    x = 20,364,485,020.22/156,682.10
  6. Step 6: Final answer
    x = 129,973.27

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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.