Home / 156,887.13-216,505.65-85,267.23

Finding the Fourth Proportional to 156,887.13, 216,505.65 and 85,267.23

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Solution

The fourth proportional to 156,887.13, 216,505.65 and 85,267.23 is: 117,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,887.13 : 216,505.65 = 85,267.23 : x
  2. Step 2: Convert to fraction form
    156,887.13/216,505.65 = 85,267.23/x
  3. Step 3: Cross multiply
    156,887.13x = 216,505.65 × 85,267.23
  4. Step 4: Simplify right side
    156,887.13x = 18,460,837,054.85
  5. Step 5: Solve for x
    x = 18,460,837,054.85/156,887.13
  6. Step 6: Final answer
    x = 117,669.54

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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.