Home / 156,765.26-216,338.64-85,145.36

Finding the Fourth Proportional to 156,765.26, 216,338.64 and 85,145.36

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Solution

The fourth proportional to 156,765.26, 216,338.64 and 85,145.36 is: 117,502.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,765.26 : 216,338.64 = 85,145.36 : x
  2. Step 2: Convert to fraction form
    156,765.26/216,338.64 = 85,145.36/x
  3. Step 3: Cross multiply
    156,765.26x = 216,338.64 × 85,145.36
  4. Step 4: Simplify right side
    156,765.26x = 18,420,231,384.71
  5. Step 5: Solve for x
    x = 18,420,231,384.71/156,765.26
  6. Step 6: Final answer
    x = 117,502.00

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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.