Home / 156,897.90-216,519.14-85,277.94

Finding the Fourth Proportional to 156,897.90, 216,519.14 and 85,277.94

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Solution

The fourth proportional to 156,897.90, 216,519.14 and 85,277.94 is: 117,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,897.90 : 216,519.14 = 85,277.94 : x
  2. Step 2: Convert to fraction form
    156,897.90/216,519.14 = 85,277.94/x
  3. Step 3: Cross multiply
    156,897.90x = 216,519.14 × 85,277.94
  4. Step 4: Simplify right side
    156,897.90x = 18,464,306,229.77
  5. Step 5: Solve for x
    x = 18,464,306,229.77/156,897.90
  6. Step 6: Final answer
    x = 117,683.58

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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.