Home / 105,734.40-158,563.20-53,126.40

Finding the Fourth Proportional to 105,734.40, 158,563.20 and 53,126.40

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Solution

The fourth proportional to 105,734.40, 158,563.20 and 53,126.40 is: 79,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,734.40 : 158,563.20 = 53,126.40 : x
  2. Step 2: Convert to fraction form
    105,734.40/158,563.20 = 53,126.40/x
  3. Step 3: Cross multiply
    105,734.40x = 158,563.20 × 53,126.40
  4. Step 4: Simplify right side
    105,734.40x = 8,423,891,988.48
  5. Step 5: Solve for x
    x = 8,423,891,988.48/105,734.40
  6. Step 6: Final answer
    x = 79,670.31

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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.