Home / 108,635.04-149,759.34-76,271.16

Finding the Fourth Proportional to 108,635.04, 149,759.34 and 76,271.16

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Solution

The fourth proportional to 108,635.04, 149,759.34 and 76,271.16 is: 105,143.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,635.04 : 149,759.34 = 76,271.16 : x
  2. Step 2: Convert to fraction form
    108,635.04/149,759.34 = 76,271.16/x
  3. Step 3: Cross multiply
    108,635.04x = 149,759.34 × 76,271.16
  4. Step 4: Simplify right side
    108,635.04x = 11,422,318,582.63
  5. Step 5: Solve for x
    x = 11,422,318,582.63/108,635.04
  6. Step 6: Final answer
    x = 105,143.96

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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.