Home / 112,856.80-169,328.40-111,085.60

Finding the Fourth Proportional to 112,856.80, 169,328.40 and 111,085.60

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Solution

The fourth proportional to 112,856.80, 169,328.40 and 111,085.60 is: 166,670.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,856.80 : 169,328.40 = 111,085.60 : x
  2. Step 2: Convert to fraction form
    112,856.80/169,328.40 = 111,085.60/x
  3. Step 3: Cross multiply
    112,856.80x = 169,328.40 × 111,085.60
  4. Step 4: Simplify right side
    112,856.80x = 18,809,946,911.04
  5. Step 5: Solve for x
    x = 18,809,946,911.04/112,856.80
  6. Step 6: Final answer
    x = 166,670.92

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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.