Home / 105,741.05-145,926.36-57,994.58

Finding the Fourth Proportional to 105,741.05, 145,926.36 and 57,994.58

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Solution

The fourth proportional to 105,741.05, 145,926.36 and 57,994.58 is: 80,034.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,741.05 : 145,926.36 = 57,994.58 : x
  2. Step 2: Convert to fraction form
    105,741.05/145,926.36 = 57,994.58/x
  3. Step 3: Cross multiply
    105,741.05x = 145,926.36 × 57,994.58
  4. Step 4: Simplify right side
    105,741.05x = 8,462,938,323.94
  5. Step 5: Solve for x
    x = 8,462,938,323.94/105,741.05
  6. Step 6: Final answer
    x = 80,034.56

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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.