Home / 112,143.79-168,173.76-45,561.49

Finding the Fourth Proportional to 112,143.79, 168,173.76 and 45,561.49

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Solution

The fourth proportional to 112,143.79, 168,173.76 and 45,561.49 is: 68,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,143.79 : 168,173.76 = 45,561.49 : x
  2. Step 2: Convert to fraction form
    112,143.79/168,173.76 = 45,561.49/x
  3. Step 3: Cross multiply
    112,143.79x = 168,173.76 × 45,561.49
  4. Step 4: Simplify right side
    112,143.79x = 7,662,247,084.50
  5. Step 5: Solve for x
    x = 7,662,247,084.50/112,143.79
  6. Step 6: Final answer
    x = 68,325.20

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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.