Home / 102,076.40-140,880.75-73,490.67

Finding the Fourth Proportional to 102,076.40, 140,880.75 and 73,490.67

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Solution

The fourth proportional to 102,076.40, 140,880.75 and 73,490.67 is: 101,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,076.40 : 140,880.75 = 73,490.67 : x
  2. Step 2: Convert to fraction form
    102,076.40/140,880.75 = 73,490.67/x
  3. Step 3: Cross multiply
    102,076.40x = 140,880.75 × 73,490.67
  4. Step 4: Simplify right side
    102,076.40x = 10,353,420,707.60
  5. Step 5: Solve for x
    x = 10,353,420,707.60/102,076.40
  6. Step 6: Final answer
    x = 101,428.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.