Home / 132,109.40-182,319.88-74,748.64

Finding the Fourth Proportional to 132,109.40, 182,319.88 and 74,748.64

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Solution

The fourth proportional to 132,109.40, 182,319.88 and 74,748.64 is: 103,158.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,109.40 : 182,319.88 = 74,748.64 : x
  2. Step 2: Convert to fraction form
    132,109.40/182,319.88 = 74,748.64/x
  3. Step 3: Cross multiply
    132,109.40x = 182,319.88 × 74,748.64
  4. Step 4: Simplify right side
    132,109.40x = 13,628,163,074.96
  5. Step 5: Solve for x
    x = 13,628,163,074.96/132,109.40
  6. Step 6: Final answer
    x = 103,158.16

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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.