Home / 113,313.20-169,969.80-75,988.40

Finding the Fourth Proportional to 113,313.20, 169,969.80 and 75,988.40

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Solution

The fourth proportional to 113,313.20, 169,969.80 and 75,988.40 is: 113,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,313.20 : 169,969.80 = 75,988.40 : x
  2. Step 2: Convert to fraction form
    113,313.20/169,969.80 = 75,988.40/x
  3. Step 3: Cross multiply
    113,313.20x = 169,969.80 × 75,988.40
  4. Step 4: Simplify right side
    113,313.20x = 12,915,733,150.32
  5. Step 5: Solve for x
    x = 12,915,733,150.32/113,313.20
  6. Step 6: Final answer
    x = 113,982.60

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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.