Home / 170,756.90-256,131.76-56,912.95

Finding the Fourth Proportional to 170,756.90, 256,131.76 and 56,912.95

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Solution

The fourth proportional to 170,756.90, 256,131.76 and 56,912.95 is: 85,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,756.90 : 256,131.76 = 56,912.95 : x
  2. Step 2: Convert to fraction form
    170,756.90/256,131.76 = 56,912.95/x
  3. Step 3: Cross multiply
    170,756.90x = 256,131.76 × 56,912.95
  4. Step 4: Simplify right side
    170,756.90x = 14,577,214,050.29
  5. Step 5: Solve for x
    x = 14,577,214,050.29/170,756.90
  6. Step 6: Final answer
    x = 85,368.23

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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.