Home / 103,010.47-154,390.93-43,721.64

Finding the Fourth Proportional to 103,010.47, 154,390.93 and 43,721.64

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Solution

The fourth proportional to 103,010.47, 154,390.93 and 43,721.64 is: 65,529.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,010.47 : 154,390.93 = 43,721.64 : x
  2. Step 2: Convert to fraction form
    103,010.47/154,390.93 = 43,721.64/x
  3. Step 3: Cross multiply
    103,010.47x = 154,390.93 × 43,721.64
  4. Step 4: Simplify right side
    103,010.47x = 6,750,224,551.42
  5. Step 5: Solve for x
    x = 6,750,224,551.42/103,010.47
  6. Step 6: Final answer
    x = 65,529.50

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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.