Home / 156,653.05-216,180.48-85,032.45

Finding the Fourth Proportional to 156,653.05, 216,180.48 and 85,032.45

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Solution

The fourth proportional to 156,653.05, 216,180.48 and 85,032.45 is: 117,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,653.05 : 216,180.48 = 85,032.45 : x
  2. Step 2: Convert to fraction form
    156,653.05/216,180.48 = 85,032.45/x
  3. Step 3: Cross multiply
    156,653.05x = 216,180.48 × 85,032.45
  4. Step 4: Simplify right side
    156,653.05x = 18,382,355,856.58
  5. Step 5: Solve for x
    x = 18,382,355,856.58/156,653.05
  6. Step 6: Final answer
    x = 117,344.39

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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.