Home / 175,638.47-242,289.78-107,671.37

Finding the Fourth Proportional to 175,638.47, 242,289.78 and 107,671.37

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Solution

The fourth proportional to 175,638.47, 242,289.78 and 107,671.37 is: 148,530.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,638.47 : 242,289.78 = 107,671.37 : x
  2. Step 2: Convert to fraction form
    175,638.47/242,289.78 = 107,671.37/x
  3. Step 3: Cross multiply
    175,638.47x = 242,289.78 × 107,671.37
  4. Step 4: Simplify right side
    175,638.47x = 26,087,671,338.15
  5. Step 5: Solve for x
    x = 26,087,671,338.15/175,638.47
  6. Step 6: Final answer
    x = 148,530.51

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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.