Home / 156,927.36-216,557.21-85,309.19

Finding the Fourth Proportional to 156,927.36, 216,557.21 and 85,309.19

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Solution

The fourth proportional to 156,927.36, 216,557.21 and 85,309.19 is: 117,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,927.36 : 216,557.21 = 85,309.19 : x
  2. Step 2: Convert to fraction form
    156,927.36/216,557.21 = 85,309.19/x
  3. Step 3: Cross multiply
    156,927.36x = 216,557.21 × 85,309.19
  4. Step 4: Simplify right side
    156,927.36x = 18,474,320,173.76
  5. Step 5: Solve for x
    x = 18,474,320,173.76/156,927.36
  6. Step 6: Final answer
    x = 117,725.30

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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.