Home / 140,412.63-193,746.80-79,984.45

Finding the Fourth Proportional to 140,412.63, 193,746.80 and 79,984.45

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Solution

The fourth proportional to 140,412.63, 193,746.80 and 79,984.45 is: 110,365.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,412.63 : 193,746.80 = 79,984.45 : x
  2. Step 2: Convert to fraction form
    140,412.63/193,746.80 = 79,984.45/x
  3. Step 3: Cross multiply
    140,412.63x = 193,746.80 × 79,984.45
  4. Step 4: Simplify right side
    140,412.63x = 15,496,731,237.26
  5. Step 5: Solve for x
    x = 15,496,731,237.26/140,412.63
  6. Step 6: Final answer
    x = 110,365.65

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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.