Home / 123,688.85-170,690.56-67,100.22

Finding the Fourth Proportional to 123,688.85, 170,690.56 and 67,100.22

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Solution

The fourth proportional to 123,688.85, 170,690.56 and 67,100.22 is: 92,598.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,688.85 : 170,690.56 = 67,100.22 : x
  2. Step 2: Convert to fraction form
    123,688.85/170,690.56 = 67,100.22/x
  3. Step 3: Cross multiply
    123,688.85x = 170,690.56 × 67,100.22
  4. Step 4: Simplify right side
    123,688.85x = 11,453,373,792.42
  5. Step 5: Solve for x
    x = 11,453,373,792.42/123,688.85
  6. Step 6: Final answer
    x = 92,598.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.