Home / 112,749.27-169,131.80-45,281.31

Finding the Fourth Proportional to 112,749.27, 169,131.80 and 45,281.31

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Solution

The fourth proportional to 112,749.27, 169,131.80 and 45,281.31 is: 67,925.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,749.27 : 169,131.80 = 45,281.31 : x
  2. Step 2: Convert to fraction form
    112,749.27/169,131.80 = 45,281.31/x
  3. Step 3: Cross multiply
    112,749.27x = 169,131.80 × 45,281.31
  4. Step 4: Simplify right side
    112,749.27x = 7,658,509,240.25
  5. Step 5: Solve for x
    x = 7,658,509,240.25/112,749.27
  6. Step 6: Final answer
    x = 67,925.13

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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.