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Finding the Fourth Proportional to 158,055.91, 218,137.12 and 103,653.83

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Solution

The fourth proportional to 158,055.91, 218,137.12 and 103,653.83 is: 143,055.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,055.91 : 218,137.12 = 103,653.83 : x
  2. Step 2: Convert to fraction form
    158,055.91/218,137.12 = 103,653.83/x
  3. Step 3: Cross multiply
    158,055.91x = 218,137.12 × 103,653.83
  4. Step 4: Simplify right side
    158,055.91x = 22,610,748,239.38
  5. Step 5: Solve for x
    x = 22,610,748,239.38/158,055.91
  6. Step 6: Final answer
    x = 143,055.38

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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.