Home / 156,903.59-216,529.16-85,283.61

Finding the Fourth Proportional to 156,903.59, 216,529.16 and 85,283.61

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Solution

The fourth proportional to 156,903.59, 216,529.16 and 85,283.61 is: 117,692.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,903.59 : 216,529.16 = 85,283.61 : x
  2. Step 2: Convert to fraction form
    156,903.59/216,529.16 = 85,283.61/x
  3. Step 3: Cross multiply
    156,903.59x = 216,529.16 × 85,283.61
  4. Step 4: Simplify right side
    156,903.59x = 18,466,388,008.65
  5. Step 5: Solve for x
    x = 18,466,388,008.65/156,903.59
  6. Step 6: Final answer
    x = 117,692.58

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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.