Home / 158,136.56-218,162.76-103,673.84

Finding the Fourth Proportional to 158,136.56, 218,162.76 and 103,673.84

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Solution

The fourth proportional to 158,136.56, 218,162.76 and 103,673.84 is: 143,026.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,136.56 : 218,162.76 = 103,673.84 : x
  2. Step 2: Convert to fraction form
    158,136.56/218,162.76 = 103,673.84/x
  3. Step 3: Cross multiply
    158,136.56x = 218,162.76 × 103,673.84
  4. Step 4: Simplify right side
    158,136.56x = 22,617,771,074.20
  5. Step 5: Solve for x
    x = 22,617,771,074.20/158,136.56
  6. Step 6: Final answer
    x = 143,026.83

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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.