Home / 156,646.10-216,165.80-85,024.58

Finding the Fourth Proportional to 156,646.10, 216,165.80 and 85,024.58

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Solution

The fourth proportional to 156,646.10, 216,165.80 and 85,024.58 is: 117,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,646.10 : 216,165.80 = 85,024.58 : x
  2. Step 2: Convert to fraction form
    156,646.10/216,165.80 = 85,024.58/x
  3. Step 3: Cross multiply
    156,646.10x = 216,165.80 × 85,024.58
  4. Step 4: Simplify right side
    156,646.10x = 18,379,404,849.41
  5. Step 5: Solve for x
    x = 18,379,404,849.41/156,646.10
  6. Step 6: Final answer
    x = 117,330.76

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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.