Home / 186,053.40-279,080.10-111,403.80

Finding the Fourth Proportional to 186,053.40, 279,080.10 and 111,403.80

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Solution

The fourth proportional to 186,053.40, 279,080.10 and 111,403.80 is: 167,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,053.40 : 279,080.10 = 111,403.80 : x
  2. Step 2: Convert to fraction form
    186,053.40/279,080.10 = 111,403.80/x
  3. Step 3: Cross multiply
    186,053.40x = 279,080.10 × 111,403.80
  4. Step 4: Simplify right side
    186,053.40x = 31,090,583,644.38
  5. Step 5: Solve for x
    x = 31,090,583,644.38/186,053.40
  6. Step 6: Final answer
    x = 167,105.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.