Home / 105,120.36-157,701.31-38,561.07

Finding the Fourth Proportional to 105,120.36, 157,701.31 and 38,561.07

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Solution

The fourth proportional to 105,120.36, 157,701.31 and 38,561.07 is: 57,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,120.36 : 157,701.31 = 38,561.07 : x
  2. Step 2: Convert to fraction form
    105,120.36/157,701.31 = 38,561.07/x
  3. Step 3: Cross multiply
    105,120.36x = 157,701.31 × 38,561.07
  4. Step 4: Simplify right side
    105,120.36x = 6,081,130,369.09
  5. Step 5: Solve for x
    x = 6,081,130,369.09/105,120.36
  6. Step 6: Final answer
    x = 57,849.22

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1.5x scale

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.