Home / 105,734.21-145,912.54-60,426.05

Finding the Fourth Proportional to 105,734.21, 145,912.54 and 60,426.05

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Solution

The fourth proportional to 105,734.21, 145,912.54 and 60,426.05 is: 83,387.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,734.21 : 145,912.54 = 60,426.05 : x
  2. Step 2: Convert to fraction form
    105,734.21/145,912.54 = 60,426.05/x
  3. Step 3: Cross multiply
    105,734.21x = 145,912.54 × 60,426.05
  4. Step 4: Simplify right side
    105,734.21x = 8,816,918,437.67
  5. Step 5: Solve for x
    x = 8,816,918,437.67/105,734.21
  6. Step 6: Final answer
    x = 83,387.57

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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.