Home / 156,891.01-216,511.31-85,271.05

Finding the Fourth Proportional to 156,891.01, 216,511.31 and 85,271.05

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Solution

The fourth proportional to 156,891.01, 216,511.31 and 85,271.05 is: 117,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,891.01 : 216,511.31 = 85,271.05 : x
  2. Step 2: Convert to fraction form
    156,891.01/216,511.31 = 85,271.05/x
  3. Step 3: Cross multiply
    156,891.01x = 216,511.31 × 85,271.05
  4. Step 4: Simplify right side
    156,891.01x = 18,462,146,740.58
  5. Step 5: Solve for x
    x = 18,462,146,740.58/156,891.01
  6. Step 6: Final answer
    x = 117,674.98

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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.