Home / 140,343.03-193,673.09-76,681.28

Finding the Fourth Proportional to 140,343.03, 193,673.09 and 76,681.28

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Solution

The fourth proportional to 140,343.03, 193,673.09 and 76,681.28 is: 105,820.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,343.03 : 193,673.09 = 76,681.28 : x
  2. Step 2: Convert to fraction form
    140,343.03/193,673.09 = 76,681.28/x
  3. Step 3: Cross multiply
    140,343.03x = 193,673.09 × 76,681.28
  4. Step 4: Simplify right side
    140,343.03x = 14,851,101,118.64
  5. Step 5: Solve for x
    x = 14,851,101,118.64/140,343.03
  6. Step 6: Final answer
    x = 105,820.01

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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.