Home / 109,455.10-164,182.65-70,089.10

Finding the Fourth Proportional to 109,455.10, 164,182.65 and 70,089.10

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Solution

The fourth proportional to 109,455.10, 164,182.65 and 70,089.10 is: 105,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,455.10 : 164,182.65 = 70,089.10 : x
  2. Step 2: Convert to fraction form
    109,455.10/164,182.65 = 70,089.10/x
  3. Step 3: Cross multiply
    109,455.10x = 164,182.65 × 70,089.10
  4. Step 4: Simplify right side
    109,455.10x = 11,507,414,174.12
  5. Step 5: Solve for x
    x = 11,507,414,174.12/109,455.10
  6. Step 6: Final answer
    x = 105,133.65

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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.