Home / 112,142.79-168,172.26-45,560.49

Finding the Fourth Proportional to 112,142.79, 168,172.26 and 45,560.49

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Solution

The fourth proportional to 112,142.79, 168,172.26 and 45,560.49 is: 68,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,142.79 : 168,172.26 = 45,560.49 : x
  2. Step 2: Convert to fraction form
    112,142.79/168,172.26 = 45,560.49/x
  3. Step 3: Cross multiply
    112,142.79x = 168,172.26 × 45,560.49
  4. Step 4: Simplify right side
    112,142.79x = 7,662,010,570.01
  5. Step 5: Solve for x
    x = 7,662,010,570.01/112,142.79
  6. Step 6: Final answer
    x = 68,323.70

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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.