Home / 138,559.48-190,950.80-100,254.17

Finding the Fourth Proportional to 138,559.48, 190,950.80 and 100,254.17

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Solution

The fourth proportional to 138,559.48, 190,950.80 and 100,254.17 is: 138,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,559.48 : 190,950.80 = 100,254.17 : x
  2. Step 2: Convert to fraction form
    138,559.48/190,950.80 = 100,254.17/x
  3. Step 3: Cross multiply
    138,559.48x = 190,950.80 × 100,254.17
  4. Step 4: Simplify right side
    138,559.48x = 19,143,613,463.57
  5. Step 5: Solve for x
    x = 19,143,613,463.57/138,559.48
  6. Step 6: Final answer
    x = 138,161.71

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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.