Home / 144,835.17-199,872.27-81,172.95

Finding the Fourth Proportional to 144,835.17, 199,872.27 and 81,172.95

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Solution

The fourth proportional to 144,835.17, 199,872.27 and 81,172.95 is: 112,018.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,835.17 : 199,872.27 = 81,172.95 : x
  2. Step 2: Convert to fraction form
    144,835.17/199,872.27 = 81,172.95/x
  3. Step 3: Cross multiply
    144,835.17x = 199,872.27 × 81,172.95
  4. Step 4: Simplify right side
    144,835.17x = 16,224,221,779.10
  5. Step 5: Solve for x
    x = 16,224,221,779.10/144,835.17
  6. Step 6: Final answer
    x = 112,018.52

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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.