Home / 156,935.35-216,566.08-85,313.53

Finding the Fourth Proportional to 156,935.35, 216,566.08 and 85,313.53

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Solution

The fourth proportional to 156,935.35, 216,566.08 and 85,313.53 is: 117,730.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.35 : 216,566.08 = 85,313.53 : x
  2. Step 2: Convert to fraction form
    156,935.35/216,566.08 = 85,313.53/x
  3. Step 3: Cross multiply
    156,935.35x = 216,566.08 × 85,313.53
  4. Step 4: Simplify right side
    156,935.35x = 18,476,016,763.06
  5. Step 5: Solve for x
    x = 18,476,016,763.06/156,935.35
  6. Step 6: Final answer
    x = 117,730.11

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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.