Home / 109,703.10-164,554.65-43,121.10

Finding the Fourth Proportional to 109,703.10, 164,554.65 and 43,121.10

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Solution

The fourth proportional to 109,703.10, 164,554.65 and 43,121.10 is: 64,681.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,703.10 : 164,554.65 = 43,121.10 : x
  2. Step 2: Convert to fraction form
    109,703.10/164,554.65 = 43,121.10/x
  3. Step 3: Cross multiply
    109,703.10x = 164,554.65 × 43,121.10
  4. Step 4: Simplify right side
    109,703.10x = 7,095,777,518.12
  5. Step 5: Solve for x
    x = 7,095,777,518.12/109,703.10
  6. Step 6: Final answer
    x = 64,681.65

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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.