Home / 113,886.40-170,829.60-30,780.40

Finding the Fourth Proportional to 113,886.40, 170,829.60 and 30,780.40

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Solution

The fourth proportional to 113,886.40, 170,829.60 and 30,780.40 is: 46,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,886.40 : 170,829.60 = 30,780.40 : x
  2. Step 2: Convert to fraction form
    113,886.40/170,829.60 = 30,780.40/x
  3. Step 3: Cross multiply
    113,886.40x = 170,829.60 × 30,780.40
  4. Step 4: Simplify right side
    113,886.40x = 5,258,203,419.84
  5. Step 5: Solve for x
    x = 5,258,203,419.84/113,886.40
  6. Step 6: Final answer
    x = 46,170.60

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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.