Home / 202,037.55-278,813.76-111,397.05

Finding the Fourth Proportional to 202,037.55, 278,813.76 and 111,397.05

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Solution

The fourth proportional to 202,037.55, 278,813.76 and 111,397.05 is: 153,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,037.55 : 278,813.76 = 111,397.05 : x
  2. Step 2: Convert to fraction form
    202,037.55/278,813.76 = 111,397.05/x
  3. Step 3: Cross multiply
    202,037.55x = 278,813.76 × 111,397.05
  4. Step 4: Simplify right side
    202,037.55x = 31,059,030,363.41
  5. Step 5: Solve for x
    x = 31,059,030,363.41/202,037.55
  6. Step 6: Final answer
    x = 153,729.00

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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.