Home / 109,911.80-164,867.70-43,315.67

Finding the Fourth Proportional to 109,911.80, 164,867.70 and 43,315.67

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Solution

The fourth proportional to 109,911.80, 164,867.70 and 43,315.67 is: 64,973.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,911.80 : 164,867.70 = 43,315.67 : x
  2. Step 2: Convert to fraction form
    109,911.80/164,867.70 = 43,315.67/x
  3. Step 3: Cross multiply
    109,911.80x = 164,867.70 × 43,315.67
  4. Step 4: Simplify right side
    109,911.80x = 7,141,354,886.86
  5. Step 5: Solve for x
    x = 7,141,354,886.86/109,911.80
  6. Step 6: Final answer
    x = 64,973.51

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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.