Home / 186,148.12-279,235.32-53,039.20

Finding the Fourth Proportional to 186,148.12, 279,235.32 and 53,039.20

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Solution

The fourth proportional to 186,148.12, 279,235.32 and 53,039.20 is: 79,562.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,148.12 : 279,235.32 = 53,039.20 : x
  2. Step 2: Convert to fraction form
    186,148.12/279,235.32 = 53,039.20/x
  3. Step 3: Cross multiply
    186,148.12x = 279,235.32 × 53,039.20
  4. Step 4: Simplify right side
    186,148.12x = 14,810,417,984.54
  5. Step 5: Solve for x
    x = 14,810,417,984.54/186,148.12
  6. Step 6: Final answer
    x = 79,562.54

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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.