Home / 105,343.20-145,344.30-62,886.24

Finding the Fourth Proportional to 105,343.20, 145,344.30 and 62,886.24

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Solution

The fourth proportional to 105,343.20, 145,344.30 and 62,886.24 is: 86,765.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,343.20 : 145,344.30 = 62,886.24 : x
  2. Step 2: Convert to fraction form
    105,343.20/145,344.30 = 62,886.24/x
  3. Step 3: Cross multiply
    105,343.20x = 145,344.30 × 62,886.24
  4. Step 4: Simplify right side
    105,343.20x = 9,140,156,532.43
  5. Step 5: Solve for x
    x = 9,140,156,532.43/105,343.20
  6. Step 6: Final answer
    x = 86,765.51

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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.