Home / 120,258.84-180,215.68-67,557.40

Finding the Fourth Proportional to 120,258.84, 180,215.68 and 67,557.40

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Solution

The fourth proportional to 120,258.84, 180,215.68 and 67,557.40 is: 101,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,258.84 : 180,215.68 = 67,557.40 : x
  2. Step 2: Convert to fraction form
    120,258.84/180,215.68 = 67,557.40/x
  3. Step 3: Cross multiply
    120,258.84x = 180,215.68 × 67,557.40
  4. Step 4: Simplify right side
    120,258.84x = 12,174,902,780.03
  5. Step 5: Solve for x
    x = 12,174,902,780.03/120,258.84
  6. Step 6: Final answer
    x = 101,239.15

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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.