Home / 156,734.45-216,291.64-85,114.98

Finding the Fourth Proportional to 156,734.45, 216,291.64 and 85,114.98

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Solution

The fourth proportional to 156,734.45, 216,291.64 and 85,114.98 is: 117,457.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.45 : 216,291.64 = 85,114.98 : x
  2. Step 2: Convert to fraction form
    156,734.45/216,291.64 = 85,114.98/x
  3. Step 3: Cross multiply
    156,734.45x = 216,291.64 × 85,114.98
  4. Step 4: Simplify right side
    156,734.45x = 18,409,658,612.77
  5. Step 5: Solve for x
    x = 18,409,658,612.77/156,734.45
  6. Step 6: Final answer
    x = 117,457.64

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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.