Home / 156,845.07-216,445.77-85,225.34

Finding the Fourth Proportional to 156,845.07, 216,445.77 and 85,225.34

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Solution

The fourth proportional to 156,845.07, 216,445.77 and 85,225.34 is: 117,610.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,845.07 : 216,445.77 = 85,225.34 : x
  2. Step 2: Convert to fraction form
    156,845.07/216,445.77 = 85,225.34/x
  3. Step 3: Cross multiply
    156,845.07x = 216,445.77 × 85,225.34
  4. Step 4: Simplify right side
    156,845.07x = 18,446,664,880.93
  5. Step 5: Solve for x
    x = 18,446,664,880.93/156,845.07
  6. Step 6: Final answer
    x = 117,610.74

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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.