Home / 158,055.65-218,136.77-103,653.59

Finding the Fourth Proportional to 158,055.65, 218,136.77 and 103,653.59

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Solution

The fourth proportional to 158,055.65, 218,136.77 and 103,653.59 is: 143,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,055.65 : 218,136.77 = 103,653.59 : x
  2. Step 2: Convert to fraction form
    158,055.65/218,136.77 = 103,653.59/x
  3. Step 3: Cross multiply
    158,055.65x = 218,136.77 × 103,653.59
  4. Step 4: Simplify right side
    158,055.65x = 22,610,659,321.50
  5. Step 5: Solve for x
    x = 22,610,659,321.50/158,055.65
  6. Step 6: Final answer
    x = 143,055.05

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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.