Home / 160,516.14-221,438.78-103,945.74

Finding the Fourth Proportional to 160,516.14, 221,438.78 and 103,945.74

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Solution

The fourth proportional to 160,516.14, 221,438.78 and 103,945.74 is: 143,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,516.14 : 221,438.78 = 103,945.74 : x
  2. Step 2: Convert to fraction form
    160,516.14/221,438.78 = 103,945.74/x
  3. Step 3: Cross multiply
    160,516.14x = 221,438.78 × 103,945.74
  4. Step 4: Simplify right side
    160,516.14x = 23,017,617,851.80
  5. Step 5: Solve for x
    x = 23,017,617,851.80/160,516.14
  6. Step 6: Final answer
    x = 143,397.53

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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.