Home / 156,980.05-216,636.59-85,364.30

Finding the Fourth Proportional to 156,980.05, 216,636.59 and 85,364.30

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Solution

The fourth proportional to 156,980.05, 216,636.59 and 85,364.30 is: 117,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.05 : 216,636.59 = 85,364.30 : x
  2. Step 2: Convert to fraction form
    156,980.05/216,636.59 = 85,364.30/x
  3. Step 3: Cross multiply
    156,980.05x = 216,636.59 × 85,364.30
  4. Step 4: Simplify right side
    156,980.05x = 18,493,030,859.74
  5. Step 5: Solve for x
    x = 18,493,030,859.74/156,980.05
  6. Step 6: Final answer
    x = 117,804.97

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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.