Home / 160,237.42-221,120.96-87,639.16

Finding the Fourth Proportional to 160,237.42, 221,120.96 and 87,639.16

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Solution

The fourth proportional to 160,237.42, 221,120.96 and 87,639.16 is: 120,938.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,237.42 : 221,120.96 = 87,639.16 : x
  2. Step 2: Convert to fraction form
    160,237.42/221,120.96 = 87,639.16/x
  3. Step 3: Cross multiply
    160,237.42x = 221,120.96 × 87,639.16
  4. Step 4: Simplify right side
    160,237.42x = 19,378,855,192.79
  5. Step 5: Solve for x
    x = 19,378,855,192.79/160,237.42
  6. Step 6: Final answer
    x = 120,938.39

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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.