Home / 120,112.74-180,322.20-97,969.32

Finding the Fourth Proportional to 120,112.74, 180,322.20 and 97,969.32

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Solution

The fourth proportional to 120,112.74, 180,322.20 and 97,969.32 is: 147,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,112.74 : 180,322.20 = 97,969.32 : x
  2. Step 2: Convert to fraction form
    120,112.74/180,322.20 = 97,969.32/x
  3. Step 3: Cross multiply
    120,112.74x = 180,322.20 × 97,969.32
  4. Step 4: Simplify right side
    120,112.74x = 17,666,043,314.90
  5. Step 5: Solve for x
    x = 17,666,043,314.90/120,112.74
  6. Step 6: Final answer
    x = 147,078.85

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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.