Home / 136,780.78-205,197.77-52,534.75

Finding the Fourth Proportional to 136,780.78, 205,197.77 and 52,534.75

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Solution

The fourth proportional to 136,780.78, 205,197.77 and 52,534.75 is: 78,812.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,780.78 : 205,197.77 = 52,534.75 : x
  2. Step 2: Convert to fraction form
    136,780.78/205,197.77 = 52,534.75/x
  3. Step 3: Cross multiply
    136,780.78x = 205,197.77 × 52,534.75
  4. Step 4: Simplify right side
    136,780.78x = 10,780,013,547.51
  5. Step 5: Solve for x
    x = 10,780,013,547.51/136,780.78
  6. Step 6: Final answer
    x = 78,812.34

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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.