Home / 156,733.80-216,291.98-85,113.24

Finding the Fourth Proportional to 156,733.80, 216,291.98 and 85,113.24

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Solution

The fourth proportional to 156,733.80, 216,291.98 and 85,113.24 is: 117,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,733.80 : 216,291.98 = 85,113.24 : x
  2. Step 2: Convert to fraction form
    156,733.80/216,291.98 = 85,113.24/x
  3. Step 3: Cross multiply
    156,733.80x = 216,291.98 × 85,113.24
  4. Step 4: Simplify right side
    156,733.80x = 18,409,311,203.82
  5. Step 5: Solve for x
    x = 18,409,311,203.82/156,733.80
  6. Step 6: Final answer
    x = 117,455.91

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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.