Home / 134,749.20-202,123.80-45,989.40

Finding the Fourth Proportional to 134,749.20, 202,123.80 and 45,989.40

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Solution

The fourth proportional to 134,749.20, 202,123.80 and 45,989.40 is: 68,984.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,749.20 : 202,123.80 = 45,989.40 : x
  2. Step 2: Convert to fraction form
    134,749.20/202,123.80 = 45,989.40/x
  3. Step 3: Cross multiply
    134,749.20x = 202,123.80 × 45,989.40
  4. Step 4: Simplify right side
    134,749.20x = 9,295,552,287.72
  5. Step 5: Solve for x
    x = 9,295,552,287.72/134,749.20
  6. Step 6: Final answer
    x = 68,984.10

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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.