Home / 112,118.85-168,174.63-45,539.28

Finding the Fourth Proportional to 112,118.85, 168,174.63 and 45,539.28

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Solution

The fourth proportional to 112,118.85, 168,174.63 and 45,539.28 is: 68,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,118.85 : 168,174.63 = 45,539.28 : x
  2. Step 2: Convert to fraction form
    112,118.85/168,174.63 = 45,539.28/x
  3. Step 3: Cross multiply
    112,118.85x = 168,174.63 × 45,539.28
  4. Step 4: Simplify right side
    112,118.85x = 7,658,551,564.47
  5. Step 5: Solve for x
    x = 7,658,551,564.47/112,118.85
  6. Step 6: Final answer
    x = 68,307.44

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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.