Home / 80,156.82-120,328.40-46,900.76

Finding the Fourth Proportional to 80,156.82, 120,328.40 and 46,900.76

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Solution

The fourth proportional to 80,156.82, 120,328.40 and 46,900.76 is: 70,405.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,156.82 : 120,328.40 = 46,900.76 : x
  2. Step 2: Convert to fraction form
    80,156.82/120,328.40 = 46,900.76/x
  3. Step 3: Cross multiply
    80,156.82x = 120,328.40 × 46,900.76
  4. Step 4: Simplify right side
    80,156.82x = 5,643,492,925.19
  5. Step 5: Solve for x
    x = 5,643,492,925.19/80,156.82
  6. Step 6: Final answer
    x = 70,405.65

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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.