Home / 105,338.08-158,007.28-42,186.64

Finding the Fourth Proportional to 105,338.08, 158,007.28 and 42,186.64

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Solution

The fourth proportional to 105,338.08, 158,007.28 and 42,186.64 is: 63,280.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,338.08 : 158,007.28 = 42,186.64 : x
  2. Step 2: Convert to fraction form
    105,338.08/158,007.28 = 42,186.64/x
  3. Step 3: Cross multiply
    105,338.08x = 158,007.28 × 42,186.64
  4. Step 4: Simplify right side
    105,338.08x = 6,665,796,238.74
  5. Step 5: Solve for x
    x = 6,665,796,238.74/105,338.08
  6. Step 6: Final answer
    x = 63,280.02

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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.