Home / 105,009.42-144,911.10-57,261.78

Finding the Fourth Proportional to 105,009.42, 144,911.10 and 57,261.78

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Solution

The fourth proportional to 105,009.42, 144,911.10 and 57,261.78 is: 79,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,009.42 : 144,911.10 = 57,261.78 : x
  2. Step 2: Convert to fraction form
    105,009.42/144,911.10 = 57,261.78/x
  3. Step 3: Cross multiply
    105,009.42x = 144,911.10 × 57,261.78
  4. Step 4: Simplify right side
    105,009.42x = 8,297,867,527.76
  5. Step 5: Solve for x
    x = 8,297,867,527.76/105,009.42
  6. Step 6: Final answer
    x = 79,020.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.