Home / 136,421.80-204,632.70-107,881.45

Finding the Fourth Proportional to 136,421.80, 204,632.70 and 107,881.45

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Solution

The fourth proportional to 136,421.80, 204,632.70 and 107,881.45 is: 161,822.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,421.80 : 204,632.70 = 107,881.45 : x
  2. Step 2: Convert to fraction form
    136,421.80/204,632.70 = 107,881.45/x
  3. Step 3: Cross multiply
    136,421.80x = 204,632.70 × 107,881.45
  4. Step 4: Simplify right side
    136,421.80x = 22,076,072,393.42
  5. Step 5: Solve for x
    x = 22,076,072,393.42/136,421.80
  6. Step 6: Final answer
    x = 161,822.18

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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.