Home / 112,445.90-168,696.54-79,230.84

Finding the Fourth Proportional to 112,445.90, 168,696.54 and 79,230.84

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Solution

The fourth proportional to 112,445.90, 168,696.54 and 79,230.84 is: 118,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,445.90 : 168,696.54 = 79,230.84 : x
  2. Step 2: Convert to fraction form
    112,445.90/168,696.54 = 79,230.84/x
  3. Step 3: Cross multiply
    112,445.90x = 168,696.54 × 79,230.84
  4. Step 4: Simplify right side
    112,445.90x = 13,365,968,569.29
  5. Step 5: Solve for x
    x = 13,365,968,569.29/112,445.90
  6. Step 6: Final answer
    x = 118,865.77

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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.