Home / 105,696.90-145,777.05-92,922.93

Finding the Fourth Proportional to 105,696.90, 145,777.05 and 92,922.93

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Solution

The fourth proportional to 105,696.90, 145,777.05 and 92,922.93 is: 128,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,696.90 : 145,777.05 = 92,922.93 : x
  2. Step 2: Convert to fraction form
    105,696.90/145,777.05 = 92,922.93/x
  3. Step 3: Cross multiply
    105,696.90x = 145,777.05 × 92,922.93
  4. Step 4: Simplify right side
    105,696.90x = 13,546,030,612.76
  5. Step 5: Solve for x
    x = 13,546,030,612.76/105,696.90
  6. Step 6: Final answer
    x = 128,159.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.