Home / 160,667.36-221,821.78-103,406.18

Finding the Fourth Proportional to 160,667.36, 221,821.78 and 103,406.18

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Solution

The fourth proportional to 160,667.36, 221,821.78 and 103,406.18 is: 142,765.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,667.36 : 221,821.78 = 103,406.18 : x
  2. Step 2: Convert to fraction form
    160,667.36/221,821.78 = 103,406.18/x
  3. Step 3: Cross multiply
    160,667.36x = 221,821.78 × 103,406.18
  4. Step 4: Simplify right side
    160,667.36x = 22,937,742,910.60
  5. Step 5: Solve for x
    x = 22,937,742,910.60/160,667.36
  6. Step 6: Final answer
    x = 142,765.42

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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.