Home / 112,657.40-168,986.10-104,103.80

Finding the Fourth Proportional to 112,657.40, 168,986.10 and 104,103.80

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Solution

The fourth proportional to 112,657.40, 168,986.10 and 104,103.80 is: 156,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,657.40 : 168,986.10 = 104,103.80 : x
  2. Step 2: Convert to fraction form
    112,657.40/168,986.10 = 104,103.80/x
  3. Step 3: Cross multiply
    112,657.40x = 168,986.10 × 104,103.80
  4. Step 4: Simplify right side
    112,657.40x = 17,592,095,157.18
  5. Step 5: Solve for x
    x = 17,592,095,157.18/112,657.40
  6. Step 6: Final answer
    x = 156,155.70

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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.