Home / 160,209.64-221,015.70-103,639.24

Finding the Fourth Proportional to 160,209.64, 221,015.70 and 103,639.24

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Solution

The fourth proportional to 160,209.64, 221,015.70 and 103,639.24 is: 142,974.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,209.64 : 221,015.70 = 103,639.24 : x
  2. Step 2: Convert to fraction form
    160,209.64/221,015.70 = 103,639.24/x
  3. Step 3: Cross multiply
    160,209.64x = 221,015.70 × 103,639.24
  4. Step 4: Simplify right side
    160,209.64x = 22,905,899,176.07
  5. Step 5: Solve for x
    x = 22,905,899,176.07/160,209.64
  6. Step 6: Final answer
    x = 142,974.54

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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.