Home / 109,178.92-163,670.96-42,603.57

Finding the Fourth Proportional to 109,178.92, 163,670.96 and 42,603.57

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Solution

The fourth proportional to 109,178.92, 163,670.96 and 42,603.57 is: 63,867.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,178.92 : 163,670.96 = 42,603.57 : x
  2. Step 2: Convert to fraction form
    109,178.92/163,670.96 = 42,603.57/x
  3. Step 3: Cross multiply
    109,178.92x = 163,670.96 × 42,603.57
  4. Step 4: Simplify right side
    109,178.92x = 6,972,967,307.84
  5. Step 5: Solve for x
    x = 6,972,967,307.84/109,178.92
  6. Step 6: Final answer
    x = 63,867.34

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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.