Home / 113,401.80-170,102.70-74,003.40

Finding the Fourth Proportional to 113,401.80, 170,102.70 and 74,003.40

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Solution

The fourth proportional to 113,401.80, 170,102.70 and 74,003.40 is: 111,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,401.80 : 170,102.70 = 74,003.40 : x
  2. Step 2: Convert to fraction form
    113,401.80/170,102.70 = 74,003.40/x
  3. Step 3: Cross multiply
    113,401.80x = 170,102.70 × 74,003.40
  4. Step 4: Simplify right side
    113,401.80x = 12,588,178,149.18
  5. Step 5: Solve for x
    x = 12,588,178,149.18/113,401.80
  6. Step 6: Final answer
    x = 111,005.10

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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.