Home / 148,623.12-205,005.60-100,958.76

Finding the Fourth Proportional to 148,623.12, 205,005.60 and 100,958.76

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Solution

The fourth proportional to 148,623.12, 205,005.60 and 100,958.76 is: 139,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,623.12 : 205,005.60 = 100,958.76 : x
  2. Step 2: Convert to fraction form
    148,623.12/205,005.60 = 100,958.76/x
  3. Step 3: Cross multiply
    148,623.12x = 205,005.60 × 100,958.76
  4. Step 4: Simplify right side
    148,623.12x = 20,697,111,169.06
  5. Step 5: Solve for x
    x = 20,697,111,169.06/148,623.12
  6. Step 6: Final answer
    x = 139,259.03

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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.