Home / 202,000.55-278,762.70-111,360.05

Finding the Fourth Proportional to 202,000.55, 278,762.70 and 111,360.05

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Solution

The fourth proportional to 202,000.55, 278,762.70 and 111,360.05 is: 153,677.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,000.55 : 278,762.70 = 111,360.05 : x
  2. Step 2: Convert to fraction form
    202,000.55/278,762.70 = 111,360.05/x
  3. Step 3: Cross multiply
    202,000.55x = 278,762.70 × 111,360.05
  4. Step 4: Simplify right side
    202,000.55x = 31,043,028,210.14
  5. Step 5: Solve for x
    x = 31,043,028,210.14/202,000.55
  6. Step 6: Final answer
    x = 153,677.94

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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.