Home / 142,725,073.23-196,944,805.22-79,143,813.81

Finding the Fourth Proportional to 142,725,073.23, 196,944,805.22 and 79,143,813.81

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Solution

The fourth proportional to 142,725,073.23, 196,944,805.22 and 79,143,813.81 is: 109,209,703.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,725,073.23 : 196,944,805.22 = 79,143,813.81 : x
  2. Step 2: Convert to fraction form
    142,725,073.23/196,944,805.22 = 79,143,813.81/x
  3. Step 3: Cross multiply
    142,725,073.23x = 196,944,805.22 × 79,143,813.81
  4. Step 4: Simplify right side
    142,725,073.23x = 15,586,962,994,782,678
  5. Step 5: Solve for x
    x = 15,586,962,994,782,678/142,725,073.23
  6. Step 6: Final answer
    x = 109,209,703.96

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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.