Home / 563,381.40-845,063.94-136,920.36

Finding the Fourth Proportional to 563,381.40, 845,063.94 and 136,920.36

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Solution

The fourth proportional to 563,381.40, 845,063.94 and 136,920.36 is: 205,378.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,381.40 : 845,063.94 = 136,920.36 : x
  2. Step 2: Convert to fraction form
    563,381.40/845,063.94 = 136,920.36/x
  3. Step 3: Cross multiply
    563,381.40x = 845,063.94 × 136,920.36
  4. Step 4: Simplify right side
    563,381.40x = 115,706,458,887.82
  5. Step 5: Solve for x
    x = 115,706,458,887.82/563,381.40
  6. Step 6: Final answer
    x = 205,378.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.