Home / 136,748.93-205,197.03-66,628.26

Finding the Fourth Proportional to 136,748.93, 205,197.03 and 66,628.26

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Solution

The fourth proportional to 136,748.93, 205,197.03 and 66,628.26 is: 99,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,748.93 : 205,197.03 = 66,628.26 : x
  2. Step 2: Convert to fraction form
    136,748.93/205,197.03 = 66,628.26/x
  3. Step 3: Cross multiply
    136,748.93x = 205,197.03 × 66,628.26
  4. Step 4: Simplify right side
    136,748.93x = 13,671,921,066.07
  5. Step 5: Solve for x
    x = 13,671,921,066.07/136,748.93
  6. Step 6: Final answer
    x = 99,978.27

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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.