Home / 201,962.04-278,706.18-111,318

Finding the Fourth Proportional to 201,962.04, 278,706.18 and 111,318

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Solution

The fourth proportional to 201,962.04, 278,706.18 and 111,318 is: 153,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,962.04 : 278,706.18 = 111,318 : x
  2. Step 2: Convert to fraction form
    201,962.04/278,706.18 = 111,318/x
  3. Step 3: Cross multiply
    201,962.04x = 278,706.18 × 111,318
  4. Step 4: Simplify right side
    201,962.04x = 31,025,014,545.24
  5. Step 5: Solve for x
    x = 31,025,014,545.24/201,962.04
  6. Step 6: Final answer
    x = 153,618.05

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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.