Home / 112,501.20-168,703.20-56,319.60

Finding the Fourth Proportional to 112,501.20, 168,703.20 and 56,319.60

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Solution

The fourth proportional to 112,501.20, 168,703.20 and 56,319.60 is: 84,455.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,501.20 : 168,703.20 = 56,319.60 : x
  2. Step 2: Convert to fraction form
    112,501.20/168,703.20 = 56,319.60/x
  3. Step 3: Cross multiply
    112,501.20x = 168,703.20 × 56,319.60
  4. Step 4: Simplify right side
    112,501.20x = 9,501,296,742.72
  5. Step 5: Solve for x
    x = 9,501,296,742.72/112,501.20
  6. Step 6: Final answer
    x = 84,455.07

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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.