Home / 156,745.08-216,308.16-85,125.15

Finding the Fourth Proportional to 156,745.08, 216,308.16 and 85,125.15

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Solution

The fourth proportional to 156,745.08, 216,308.16 and 85,125.15 is: 117,472.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,745.08 : 216,308.16 = 85,125.15 : x
  2. Step 2: Convert to fraction form
    156,745.08/216,308.16 = 85,125.15/x
  3. Step 3: Cross multiply
    156,745.08x = 216,308.16 × 85,125.15
  4. Step 4: Simplify right side
    156,745.08x = 18,413,264,566.22
  5. Step 5: Solve for x
    x = 18,413,264,566.22/156,745.08
  6. Step 6: Final answer
    x = 117,472.68

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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.