Home / 136,824.69-205,237.02-99,621.51

Finding the Fourth Proportional to 136,824.69, 205,237.02 and 99,621.51

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Solution

The fourth proportional to 136,824.69, 205,237.02 and 99,621.51 is: 149,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,824.69 : 205,237.02 = 99,621.51 : x
  2. Step 2: Convert to fraction form
    136,824.69/205,237.02 = 99,621.51/x
  3. Step 3: Cross multiply
    136,824.69x = 205,237.02 × 99,621.51
  4. Step 4: Simplify right side
    136,824.69x = 20,446,021,840.30
  5. Step 5: Solve for x
    x = 20,446,021,840.30/136,824.69
  6. Step 6: Final answer
    x = 149,432.25

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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.