Home / 156,897.72-216,520.14-85,277.76

Finding the Fourth Proportional to 156,897.72, 216,520.14 and 85,277.76

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Solution

The fourth proportional to 156,897.72, 216,520.14 and 85,277.76 is: 117,684.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,897.72 : 216,520.14 = 85,277.76 : x
  2. Step 2: Convert to fraction form
    156,897.72/216,520.14 = 85,277.76/x
  3. Step 3: Cross multiply
    156,897.72x = 216,520.14 × 85,277.76
  4. Step 4: Simplify right side
    156,897.72x = 18,464,352,534.09
  5. Step 5: Solve for x
    x = 18,464,352,534.09/156,897.72
  6. Step 6: Final answer
    x = 117,684.01

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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.