Home / 201,680.08-278,307.68-111,018.40

Finding the Fourth Proportional to 201,680.08, 278,307.68 and 111,018.40

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Solution

The fourth proportional to 201,680.08, 278,307.68 and 111,018.40 is: 153,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,680.08 : 278,307.68 = 111,018.40 : x
  2. Step 2: Convert to fraction form
    201,680.08/278,307.68 = 111,018.40/x
  3. Step 3: Cross multiply
    201,680.08x = 278,307.68 × 111,018.40
  4. Step 4: Simplify right side
    201,680.08x = 30,897,273,341.31
  5. Step 5: Solve for x
    x = 30,897,273,341.31/201,680.08
  6. Step 6: Final answer
    x = 153,199.43

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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.