Home / 109,909.45-164,814.90-43,315.30

Finding the Fourth Proportional to 109,909.45, 164,814.90 and 43,315.30

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Solution

The fourth proportional to 109,909.45, 164,814.90 and 43,315.30 is: 64,953.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,909.45 : 164,814.90 = 43,315.30 : x
  2. Step 2: Convert to fraction form
    109,909.45/164,814.90 = 43,315.30/x
  3. Step 3: Cross multiply
    109,909.45x = 164,814.90 × 43,315.30
  4. Step 4: Simplify right side
    109,909.45x = 7,139,006,837.97
  5. Step 5: Solve for x
    x = 7,139,006,837.97/109,909.45
  6. Step 6: Final answer
    x = 64,953.53

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1.5x scale

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.