Home / 113,615.40-170,228.70-72,013.80

Finding the Fourth Proportional to 113,615.40, 170,228.70 and 72,013.80

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Solution

The fourth proportional to 113,615.40, 170,228.70 and 72,013.80 is: 107,897.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,615.40 : 170,228.70 = 72,013.80 : x
  2. Step 2: Convert to fraction form
    113,615.40/170,228.70 = 72,013.80/x
  3. Step 3: Cross multiply
    113,615.40x = 170,228.70 × 72,013.80
  4. Step 4: Simplify right side
    113,615.40x = 12,258,815,556.06
  5. Step 5: Solve for x
    x = 12,258,815,556.06/113,615.40
  6. Step 6: Final answer
    x = 107,897.48

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1.5x scale

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.