Home / 156,891.15-216,511.47-85,271.18

Finding the Fourth Proportional to 156,891.15, 216,511.47 and 85,271.18

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Solution

The fourth proportional to 156,891.15, 216,511.47 and 85,271.18 is: 117,675.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,891.15 : 216,511.47 = 85,271.18 : x
  2. Step 2: Convert to fraction form
    156,891.15/216,511.47 = 85,271.18/x
  3. Step 3: Cross multiply
    156,891.15x = 216,511.47 × 85,271.18
  4. Step 4: Simplify right side
    156,891.15x = 18,462,187,447.88
  5. Step 5: Solve for x
    x = 18,462,187,447.88/156,891.15
  6. Step 6: Final answer
    x = 117,675.14

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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.