Home / 108,599.51-149,778.46-76,440.59

Finding the Fourth Proportional to 108,599.51, 149,778.46 and 76,440.59

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Solution

The fourth proportional to 108,599.51, 149,778.46 and 76,440.59 is: 105,425.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,599.51 : 149,778.46 = 76,440.59 : x
  2. Step 2: Convert to fraction form
    108,599.51/149,778.46 = 76,440.59/x
  3. Step 3: Cross multiply
    108,599.51x = 149,778.46 × 76,440.59
  4. Step 4: Simplify right side
    108,599.51x = 11,449,154,184.18
  5. Step 5: Solve for x
    x = 11,449,154,184.18/108,599.51
  6. Step 6: Final answer
    x = 105,425.46

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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.