Home / 105,529.92-158,328-46,415.28

Finding the Fourth Proportional to 105,529.92, 158,328 and 46,415.28

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Solution

The fourth proportional to 105,529.92, 158,328 and 46,415.28 is: 69,637.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,529.92 : 158,328 = 46,415.28 : x
  2. Step 2: Convert to fraction form
    105,529.92/158,328 = 46,415.28/x
  3. Step 3: Cross multiply
    105,529.92x = 158,328 × 46,415.28
  4. Step 4: Simplify right side
    105,529.92x = 7,348,838,451.84
  5. Step 5: Solve for x
    x = 7,348,838,451.84/105,529.92
  6. Step 6: Final answer
    x = 69,637.49

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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.