Home / 156,102.34-215,421.60-84,483.04

Finding the Fourth Proportional to 156,102.34, 215,421.60 and 84,483.04

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Solution

The fourth proportional to 156,102.34, 215,421.60 and 84,483.04 is: 116,586.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,102.34 : 215,421.60 = 84,483.04 : x
  2. Step 2: Convert to fraction form
    156,102.34/215,421.60 = 84,483.04/x
  3. Step 3: Cross multiply
    156,102.34x = 215,421.60 × 84,483.04
  4. Step 4: Simplify right side
    156,102.34x = 18,199,471,649.66
  5. Step 5: Solve for x
    x = 18,199,471,649.66/156,102.34
  6. Step 6: Final answer
    x = 116,586.80

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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.