Home / 156,734.80-216,293.36-85,114.24

Finding the Fourth Proportional to 156,734.80, 216,293.36 and 85,114.24

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Solution

The fourth proportional to 156,734.80, 216,293.36 and 85,114.24 is: 117,457.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.80 : 216,293.36 = 85,114.24 : x
  2. Step 2: Convert to fraction form
    156,734.80/216,293.36 = 85,114.24/x
  3. Step 3: Cross multiply
    156,734.80x = 216,293.36 × 85,114.24
  4. Step 4: Simplify right side
    156,734.80x = 18,409,644,953.45
  5. Step 5: Solve for x
    x = 18,409,644,953.45/156,734.80
  6. Step 6: Final answer
    x = 117,457.29

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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.