Home / 156,761.48-216,330.67-85,141.56

Finding the Fourth Proportional to 156,761.48, 216,330.67 and 85,141.56

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Solution

The fourth proportional to 156,761.48, 216,330.67 and 85,141.56 is: 117,495.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,761.48 : 216,330.67 = 85,141.56 : x
  2. Step 2: Convert to fraction form
    156,761.48/216,330.67 = 85,141.56/x
  3. Step 3: Cross multiply
    156,761.48x = 216,330.67 × 85,141.56
  4. Step 4: Simplify right side
    156,761.48x = 18,418,730,051.48
  5. Step 5: Solve for x
    x = 18,418,730,051.48/156,761.48
  6. Step 6: Final answer
    x = 117,495.26

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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.