Home / 105,741.55-145,927.05-57,995.09

Finding the Fourth Proportional to 105,741.55, 145,927.05 and 57,995.09

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Solution

The fourth proportional to 105,741.55, 145,927.05 and 57,995.09 is: 80,035.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,741.55 : 145,927.05 = 57,995.09 : x
  2. Step 2: Convert to fraction form
    105,741.55/145,927.05 = 57,995.09/x
  3. Step 3: Cross multiply
    105,741.55x = 145,927.05 × 57,995.09
  4. Step 4: Simplify right side
    105,741.55x = 8,463,051,668.55
  5. Step 5: Solve for x
    x = 8,463,051,668.55/105,741.55
  6. Step 6: Final answer
    x = 80,035.26

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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.