Home / 82,049.46-122,861.18-70,278.74

Finding the Fourth Proportional to 82,049.46, 122,861.18 and 70,278.74

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Solution

The fourth proportional to 82,049.46, 122,861.18 and 70,278.74 is: 105,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,049.46 : 122,861.18 = 70,278.74 : x
  2. Step 2: Convert to fraction form
    82,049.46/122,861.18 = 70,278.74/x
  3. Step 3: Cross multiply
    82,049.46x = 122,861.18 × 70,278.74
  4. Step 4: Simplify right side
    82,049.46x = 8,634,528,925.31
  5. Step 5: Solve for x
    x = 8,634,528,925.31/82,049.46
  6. Step 6: Final answer
    x = 105,235.66

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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.