Home / 156,985.71-216,633.70-89,007.26

Finding the Fourth Proportional to 156,985.71, 216,633.70 and 89,007.26

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Solution

The fourth proportional to 156,985.71, 216,633.70 and 89,007.26 is: 122,826.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.71 : 216,633.70 = 89,007.26 : x
  2. Step 2: Convert to fraction form
    156,985.71/216,633.70 = 89,007.26/x
  3. Step 3: Cross multiply
    156,985.71x = 216,633.70 × 89,007.26
  4. Step 4: Simplify right side
    156,985.71x = 19,281,972,060.66
  5. Step 5: Solve for x
    x = 19,281,972,060.66/156,985.71
  6. Step 6: Final answer
    x = 122,826.29

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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.