Home / 156,441.30-215,890.02-84,822.42

Finding the Fourth Proportional to 156,441.30, 215,890.02 and 84,822.42

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Solution

The fourth proportional to 156,441.30, 215,890.02 and 84,822.42 is: 117,055.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,441.30 : 215,890.02 = 84,822.42 : x
  2. Step 2: Convert to fraction form
    156,441.30/215,890.02 = 84,822.42/x
  3. Step 3: Cross multiply
    156,441.30x = 215,890.02 × 84,822.42
  4. Step 4: Simplify right side
    156,441.30x = 18,312,313,950.25
  5. Step 5: Solve for x
    x = 18,312,313,950.25/156,441.30
  6. Step 6: Final answer
    x = 117,055.50

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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.