Home / 170,385.06-235,171.46-105,903

Finding the Fourth Proportional to 170,385.06, 235,171.46 and 105,903

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Solution

The fourth proportional to 170,385.06, 235,171.46 and 105,903 is: 146,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,385.06 : 235,171.46 = 105,903 : x
  2. Step 2: Convert to fraction form
    170,385.06/235,171.46 = 105,903/x
  3. Step 3: Cross multiply
    170,385.06x = 235,171.46 × 105,903
  4. Step 4: Simplify right side
    170,385.06x = 24,905,363,393.14
  5. Step 5: Solve for x
    x = 24,905,363,393.14/170,385.06
  6. Step 6: Final answer
    x = 146,171.05

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1.5x scale

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.