Home / 120,280.92-180,561.02-70,396.84

Finding the Fourth Proportional to 120,280.92, 180,561.02 and 70,396.84

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Solution

The fourth proportional to 120,280.92, 180,561.02 and 70,396.84 is: 105,676.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,280.92 : 180,561.02 = 70,396.84 : x
  2. Step 2: Convert to fraction form
    120,280.92/180,561.02 = 70,396.84/x
  3. Step 3: Cross multiply
    120,280.92x = 180,561.02 × 70,396.84
  4. Step 4: Simplify right side
    120,280.92x = 12,710,925,235.18
  5. Step 5: Solve for x
    x = 12,710,925,235.18/120,280.92
  6. Step 6: Final answer
    x = 105,676.99

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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.