Home / 105,739.02-145,923.93-57,994.38

Finding the Fourth Proportional to 105,739.02, 145,923.93 and 57,994.38

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Solution

The fourth proportional to 105,739.02, 145,923.93 and 57,994.38 is: 80,034.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,739.02 : 145,923.93 = 57,994.38 : x
  2. Step 2: Convert to fraction form
    105,739.02/145,923.93 = 57,994.38/x
  3. Step 3: Cross multiply
    105,739.02x = 145,923.93 × 57,994.38
  4. Step 4: Simplify right side
    105,739.02x = 8,462,767,847.51
  5. Step 5: Solve for x
    x = 8,462,767,847.51/105,739.02
  6. Step 6: Final answer
    x = 80,034.48

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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.