Home / 137,281.98-189,452.34-76,851.12

Finding the Fourth Proportional to 137,281.98, 189,452.34 and 76,851.12

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Solution

The fourth proportional to 137,281.98, 189,452.34 and 76,851.12 is: 106,056.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,281.98 : 189,452.34 = 76,851.12 : x
  2. Step 2: Convert to fraction form
    137,281.98/189,452.34 = 76,851.12/x
  3. Step 3: Cross multiply
    137,281.98x = 189,452.34 × 76,851.12
  4. Step 4: Simplify right side
    137,281.98x = 14,559,624,515.62
  5. Step 5: Solve for x
    x = 14,559,624,515.62/137,281.98
  6. Step 6: Final answer
    x = 106,056.34

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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.