Home / 112,311.25-168,420.40-45,706.16

Finding the Fourth Proportional to 112,311.25, 168,420.40 and 45,706.16

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Solution

The fourth proportional to 112,311.25, 168,420.40 and 45,706.16 is: 68,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,311.25 : 168,420.40 = 45,706.16 : x
  2. Step 2: Convert to fraction form
    112,311.25/168,420.40 = 45,706.16/x
  3. Step 3: Cross multiply
    112,311.25x = 168,420.40 × 45,706.16
  4. Step 4: Simplify right side
    112,311.25x = 7,697,849,749.66
  5. Step 5: Solve for x
    x = 7,697,849,749.66/112,311.25
  6. Step 6: Final answer
    x = 68,540.33

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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.