Home / 105,633.15-158,457.03-42,453.32

Finding the Fourth Proportional to 105,633.15, 158,457.03 and 42,453.32

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Solution

The fourth proportional to 105,633.15, 158,457.03 and 42,453.32 is: 63,682.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,633.15 : 158,457.03 = 42,453.32 : x
  2. Step 2: Convert to fraction form
    105,633.15/158,457.03 = 42,453.32/x
  3. Step 3: Cross multiply
    105,633.15x = 158,457.03 × 42,453.32
  4. Step 4: Simplify right side
    105,633.15x = 6,727,027,535.63
  5. Step 5: Solve for x
    x = 6,727,027,535.63/105,633.15
  6. Step 6: Final answer
    x = 63,682.92

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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.