Home / 156,782.35-216,360.48-85,162.96

Finding the Fourth Proportional to 156,782.35, 216,360.48 and 85,162.96

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Solution

The fourth proportional to 156,782.35, 216,360.48 and 85,162.96 is: 117,525.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,782.35 : 216,360.48 = 85,162.96 : x
  2. Step 2: Convert to fraction form
    156,782.35/216,360.48 = 85,162.96/x
  3. Step 3: Cross multiply
    156,782.35x = 216,360.48 × 85,162.96
  4. Step 4: Simplify right side
    156,782.35x = 18,425,898,903.82
  5. Step 5: Solve for x
    x = 18,425,898,903.82/156,782.35
  6. Step 6: Final answer
    x = 117,525.34

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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.